What is the PM10 level in Issaquah, Washington at the moment?

The PM10 concentration in Issaquah, Washington is 67.084 μg/m3 at the moment.

What is the sulfur dioxide (SO2) level in Issaquah, Washington at the moment?

Currently, Issaquah, Washington has a sulfur dioxide (SO2) concentration of 1.187 ppb.

What is the ozone (O3) level in Issaquah, Washington at the moment?

The current ozone (O3) level in Issaquah, Washington at the moment is 17.011 ppm.

What is the nitrogen dioxide (NO2) level in Issaquah, Washington at the moment?

Nitrogen dioxide (NO2) level in Issaquah, Washington at the moment is 12.753 ppb.

Live air quality index in Issaquah, Washington today

Name: Live air pollution levels in Issaquah, Washington today
Creator: Ambee

Stay updated with real-time air quality in Issaquah, Washington featuring accurate data on AQI, PM_2.5, PM₁₀, O₃, NO₂, SO₂, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.

Live AQI (Air Quality Index)

Moderate

Issaquah, Washington

Last updated: ... (Local time)

Major air pollutants in Issaquah, Washington

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

17.47 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

67.08 μg/m³

155

255

425

605+

Ozone (O₃)

17.01 ppb

201

201+

Sulfur Dioxide (SO₂)

1.19 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

12.75 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.24 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

Issaquah, Washington

Get Live Pollen Counts

Issaquah, Washington

Scroll To Air Quality Map

Track live Issaquah, Washington air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-04T00:00:00.000Z	77 \| moderate	22.879 \| fine	87.16 \| fine	48.918 \| good	0.5 \| good	9.52 \| good	0.223 \| good
2025-09-04T01:00:00.000Z	84 \| moderate	14.742 \| fine	122.075 \| fine	47.89 \| good	0.417 \| good	7.72 \| good	0.255 \| good
2025-09-04T02:00:00.000Z	69 \| moderate	18.838 \| fine	63.217 \| fine	42.986 \| good	0.428 \| good	11.874 \| good	0.26 \| good
2025-09-04T03:00:00.000Z	67 \| moderate	18.097 \| fine	72.424 \| fine	41.908 \| good	0.489 \| good	9.431 \| good	0.304 \| good
2025-09-04T04:00:00.000Z	77 \| moderate	23.215 \| fine	91.188 \| fine	39.962 \| good	0.634 \| good	10.262 \| good	0.262 \| good
2025-09-04T05:00:00.000Z	94 \| moderate	31.692 \| fine	133.691 \| fine	31.139 \| good	0.588 \| good	16.006 \| good	0.305 \| good
2025-09-04T06:00:00.000Z	82 \| moderate	26.396 \| fine	85.695 \| fine	23.177 \| good	0.499 \| good	18.421 \| good	0.294 \| good
2025-09-04T07:00:00.000Z	81 \| moderate	25.217 \| fine	88.306 \| fine	20.126 \| good	0.48 \| good	15.13 \| good	0.251 \| good
2025-09-04T08:00:00.000Z	82 \| moderate	25.768 \| fine	110.769 \| fine	14.239 \| good	0.416 \| good	8.573 \| good	0.209 \| good
2025-09-04T09:00:00.000Z	88 \| moderate	29.473 \| fine	58.969 \| fine	12.246 \| good	0.323 \| good	7.474 \| good	0.162 \| good
2025-09-04T10:00:00.000Z	66 \| moderate	17.355 \| fine	66.673 \| fine	10.999 \| good	0.451 \| good	6.464 \| good	0.162 \| good
2025-09-04T11:00:00.000Z	69 \| moderate	18.71 \| fine	80.713 \| fine	8.068 \| good	0.299 \| good	6.204 \| good	0.124 \| good
2025-09-04T12:00:00.000Z	64 \| moderate	15.868 \| fine	51.611 \| good	8.061 \| good	0.233 \| good	8.356 \| good	0.124 \| good
2025-09-04T13:00:00.000Z	82 \| moderate	25.994 \| fine	113.464 \| fine	16.041 \| good	1.392 \| good	10.839 \| good	0.352 \| good
2025-09-04T14:00:00.000Z	62 \| moderate	15.297 \| fine	45.531 \| good	5.13 \| good	0.224 \| good	10.116 \| good	0.192 \| good
2025-09-04T15:00:00.000Z	62 \| moderate	14.983 \| fine	60.496 \| fine	4.111 \| good	0.159 \| good	8.595 \| good	0.162 \| good
2025-09-04T16:00:00.000Z	44 \| good	8.402 \| good	30.062 \| good	5.035 \| good	0.354 \| good	8.27 \| good	0.213 \| good
2025-09-04T17:00:00.000Z	49 \| good	8.946 \| good	36.83 \| good	8.115 \| good	0.588 \| good	11.555 \| good	0.246 \| good
2025-09-04T18:00:00.000Z	60 \| moderate	13.775 \| fine	58.969 \| fine	9.02 \| good	0.643 \| good	12.606 \| good	0.2 \| good
2025-09-04T19:00:00.000Z	58 \| moderate	12.993 \| fine	64.115 \| fine	11.036 \| good	0.575 \| good	13.748 \| good	0.251 \| good
2025-09-04T20:00:00.000Z	52 \| moderate	10.421 \| good	44.108 \| good	14.049 \| good	0.623 \| good	11.432 \| good	0.2 \| good
2025-09-04T21:00:00.000Z	56 \| moderate	10.692 \| good	66.2 \| fine	18.993 \| good	0.63 \| good	14.449 \| good	0.251 \| good
2025-09-04T22:00:00.000Z	56 \| moderate	11.88 \| good	47.703 \| good	24.935 \| good	0.736 \| good	16.34 \| good	0.332 \| good
2025-09-04T23:00:00.000Z	56 \| moderate	12.143 \| fine	52.803 \| good	25.992 \| good	0.564 \| good	12.156 \| good	0.332 \| good
2025-09-05T00:00:00.000Z	54 \| moderate	11.418 \| good	49.537 \| good	27.085 \| good	0.579 \| good	10.263 \| good	0.287 \| good
2025-09-05T01:00:00.000Z	56 \| moderate	12.43 \| fine	54.664 \| good	22.728 \| good	0.597 \| good	12.914 \| good	0.292 \| good
2025-09-05T02:00:00.000Z	58 \| moderate	12.81 \| fine	48.573 \| good	20.081 \| good	0.664 \| good	13.496 \| good	0.33 \| good
2025-09-05T03:00:00.000Z	58 \| moderate	12.669 \| fine	39.567 \| good	19.139 \| good	0.638 \| good	15.368 \| good	0.286 \| good
2025-09-05T04:00:00.000Z	64 \| moderate	11.835 \| good	81.082 \| fine	17.078 \| good	0.558 \| good	16.491 \| good	0.289 \| good
2025-09-05T05:00:00.000Z	62 \| moderate	14.708 \| fine	65.42 \| fine	12.164 \| good	0.462 \| good	14.149 \| good	0.327 \| good
2025-09-05T06:00:00.000Z	71 \| moderate	19.614 \| fine	85.146 \| fine	9.29 \| good	0.652 \| good	13.081 \| good	0.372 \| good
2025-09-05T07:00:00.000Z	62 \| moderate	14.63 \| fine	51.843 \| good	9.222 \| good	0.398 \| good	17.341 \| good	0.284 \| good
2025-09-05T08:00:00.000Z	62 \| moderate	14.617 \| fine	47.272 \| good	4.386 \| good	0.39 \| good	18.542 \| good	0.2 \| good
2025-09-05T09:00:00.000Z	60 \| moderate	14.213 \| fine	73.284 \| fine	3.343 \| good	0.405 \| good	11.841 \| good	0.162 \| good
2025-09-05T10:00:00.000Z	60 \| moderate	14.327 \| fine	57.402 \| fine	2.178 \| good	0.414 \| good	10.251 \| good	0.162 \| good
2025-09-05T11:00:00.000Z	64 \| moderate	15.826 \| fine	52.778 \| good	3.015 \| good	0.378 \| good	9.976 \| good	0.169 \| good
2025-09-05T12:00:00.000Z	69 \| moderate	19.19 \| fine	60.739 \| fine	2.542 \| good	0.369 \| good	10.307 \| good	0.2 \| good
2025-09-05T13:00:00.000Z	74 \| moderate	20.815 \| fine	102.174 \| fine	2.209 \| good	0.298 \| good	9.613 \| good	0.194 \| good
2025-09-05T14:00:00.000Z	66 \| moderate	16.578 \| fine	65.252 \| fine	2.165 \| good	0.573 \| good	9.287 \| good	0.278 \| good
2025-09-05T15:00:00.000Z	64 \| moderate	12.258 \| fine	81.158 \| fine	2.079 \| good	0.603 \| good	9.758 \| good	0.278 \| good
2025-09-05T16:00:00.000Z	58 \| moderate	12.538 \| fine	64.114 \| fine	2.12 \| good	0.789 \| good	9.39 \| good	0.243 \| good
2025-09-05T17:00:00.000Z	66 \| moderate	13.116 \| fine	84.913 \| fine	3.13 \| good	0.846 \| good	10.566 \| good	0.287 \| good
2025-09-05T18:00:00.000Z	62 \| moderate	14.64 \| fine	69.861 \| fine	6.206 \| good	0.956 \| good	13.767 \| good	0.3 \| good
2025-09-05T19:00:00.000Z	58 \| moderate	12.902 \| fine	29.213 \| good	8.079 \| good	1.026 \| good	13.023 \| good	0.294 \| good
2025-09-05T20:00:00.000Z	69 \| moderate	19.051 \| fine	78.089 \| fine	9.113 \| good	0.761 \| good	8.979 \| good	0.249 \| good
2025-09-05T21:00:00.000Z	77 \| moderate	22.596 \| fine	94.143 \| fine	15.141 \| good	0.66 \| good	13.175 \| good	0.255 \| good
2025-09-05T22:00:00.000Z	66 \| moderate	17.47 \| fine	67.084 \| fine	17.011 \| good	1.187 \| good	12.753 \| good	0.243 \| good
2025-09-05T23:00:00.000Z	66 \| moderate	17.47 \| fine	67.084 \| fine	17.011 \| good	1.187 \| good	12.753 \| good	0.243 \| good
2025-09-03T22:00:00.000Z	66 \| moderate	17.442 \| fine	77.288 \| fine	54.791 \| good	1.775 \| good	3.088 \| good	0.255 \| good
2025-09-03T23:00:00.000Z	71 \| moderate	19.577 \| fine	86.405 \| fine	56.703 \| fine	1.895 \| good	2.998 \| good	0.25 \| good
2025-09-04T00:00:00.000Z	75 \| moderate	22.346 \| fine	97.758 \| fine	54.786 \| good	2.015 \| good	2.908 \| good	0.244 \| good
2025-09-04T01:00:00.000Z	82 \| moderate	25.906 \| fine	112.924 \| fine	50.573 \| good	2.089 \| good	7.894 \| good	0.288 \| good
2025-09-04T02:00:00.000Z	86 \| moderate	28.031 \| fine	121.909 \| fine	44.499 \| good	2.163 \| good	12.879 \| good	0.331 \| good
2025-09-04T03:00:00.000Z	88 \| moderate	29.026 \| fine	126.073 \| fine	37.315 \| good	2.237 \| good	17.865 \| good	0.375 \| good
2025-09-04T04:00:00.000Z	88 \| moderate	28.601 \| fine	124.284 \| fine	29.166 \| good	2.185 \| good	19.191 \| good	0.393 \| good
2025-09-04T05:00:00.000Z	86 \| moderate	28.268 \| fine	122.735 \| fine	26.81 \| good	2.134 \| good	20.517 \| good	0.412 \| good
2025-09-04T06:00:00.000Z	86 \| moderate	28.479 \| fine	123.394 \| fine	25.027 \| good	2.083 \| good	21.843 \| good	0.43 \| good
2025-09-04T07:00:00.000Z	88 \| moderate	28.74 \| fine	124.803 \| fine	24.52 \| good	2.003 \| good	19.541 \| good	0.416 \| good
2025-09-04T08:00:00.000Z	88 \| moderate	28.579 \| fine	123.715 \| fine	21.741 \| good	1.923 \| good	17.24 \| good	0.402 \| good
2025-09-04T09:00:00.000Z	88 \| moderate	28.962 \| fine	125.727 \| fine	19.98 \| good	1.843 \| good	14.939 \| good	0.387 \| good
2025-09-04T10:00:00.000Z	88 \| moderate	29.045 \| fine	125.876 \| fine	19.908 \| good	1.762 \| good	13.062 \| good	0.368 \| good
2025-09-04T11:00:00.000Z	86 \| moderate	28.236 \| fine	122.923 \| fine	20.427 \| good	1.682 \| good	11.185 \| good	0.349 \| good
2025-09-04T12:00:00.000Z	86 \| moderate	27.576 \| fine	120.009 \| fine	20.22 \| good	1.601 \| good	9.308 \| good	0.33 \| good
2025-09-04T13:00:00.000Z	84 \| moderate	27.462 \| fine	119.502 \| fine	16.774 \| good	1.553 \| good	9.804 \| good	0.335 \| good
2025-09-04T14:00:00.000Z	86 \| moderate	27.88 \| fine	121.552 \| fine	13.216 \| good	1.506 \| good	10.299 \| good	0.341 \| good
2025-09-04T15:00:00.000Z	82 \| moderate	26.386 \| fine	114.997 \| fine	15.592 \| good	1.458 \| good	10.794 \| good	0.346 \| good
2025-09-04T16:00:00.000Z	81 \| moderate	25.458 \| fine	111.465 \| fine	18.329 \| good	1.804 \| good	10.046 \| good	0.331 \| good
2025-09-04T17:00:00.000Z	81 \| moderate	24.551 \| fine	107.337 \| fine	23.644 \| good	2.149 \| good	9.299 \| good	0.317 \| good
2025-09-04T18:00:00.000Z	77 \| moderate	23.064 \| fine	101.298 \| fine	28.424 \| good	2.494 \| good	8.551 \| good	0.302 \| good
2025-09-04T19:00:00.000Z	77 \| moderate	22.671 \| fine	99.154 \| fine	34.016 \| good	2.418 \| good	8.079 \| good	0.293 \| good
2025-09-04T20:00:00.000Z	75 \| moderate	22.453 \| fine	98 \| fine	40.135 \| good	2.342 \| good	7.608 \| good	0.285 \| good
2025-09-04T21:00:00.000Z	77 \| moderate	22.617 \| fine	99.153 \| fine	50.77 \| good	2.266 \| good	7.137 \| good	0.276 \| good
2025-09-04T22:00:00.000Z	75 \| moderate	22.021 \| fine	96.345 \| fine	57.059 \| fine	2.163 \| good	6.731 \| good	0.268 \| good
2025-09-04T23:00:00.000Z	71 \| moderate	20.432 \| fine	89.978 \| fine	58.727 \| fine	2.061 \| good	6.326 \| good	0.259 \| good
2025-09-05T00:00:00.000Z	67 \| moderate	18.061 \| fine	80.112 \| fine	50.591 \| good	1.958 \| good	5.92 \| good	0.251 \| good
2025-09-05T01:00:00.000Z	67 \| moderate	17.673 \| fine	77.977 \| fine	35.91 \| good	1.952 \| good	12.164 \| good	0.306 \| good
2025-09-05T02:00:00.000Z	69 \| moderate	18.845 \| fine	83.295 \| fine	27.195 \| good	1.947 \| good	18.407 \| good	0.361 \| good
2025-09-05T03:00:00.000Z	71 \| moderate	19.98 \| fine	88.202 \| fine	21.718 \| good	1.941 \| good	24.651 \| good	0.416 \| good
2025-09-05T04:00:00.000Z	71 \| moderate	19.732 \| fine	87.125 \| fine	17.123 \| good	1.953 \| good	26.065 \| good	0.437 \| good
2025-09-05T05:00:00.000Z	71 \| moderate	19.724 \| fine	86.871 \| fine	15.664 \| good	1.966 \| good	27.48 \| good	0.458 \| good
2025-09-05T06:00:00.000Z	71 \| moderate	19.797 \| fine	87.875 \| fine	17.008 \| good	1.978 \| good	28.894 \| good	0.48 \| good
2025-09-05T07:00:00.000Z	71 \| moderate	20.07 \| fine	88.593 \| fine	17.687 \| good	1.87 \| good	25.578 \| good	0.462 \| good
2025-09-05T08:00:00.000Z	71 \| moderate	20.433 \| fine	89.671 \| fine	19.877 \| good	1.762 \| good	22.261 \| good	0.443 \| good
2025-09-05T09:00:00.000Z	73 \| moderate	21.189 \| fine	93.045 \| fine	19.836 \| good	1.654 \| good	18.944 \| good	0.425 \| good
2025-09-05T10:00:00.000Z	75 \| moderate	22.365 \| fine	97.698 \| fine	18.093 \| good	1.536 \| good	16.176 \| good	0.404 \| good
2025-09-05T11:00:00.000Z	77 \| moderate	23.353 \| fine	102.048 \| fine	16.916 \| good	1.417 \| good	13.408 \| good	0.383 \| good
2025-09-05T12:00:00.000Z	79 \| moderate	24.356 \| fine	106.486 \| fine	17.21 \| good	1.298 \| good	10.64 \| good	0.362 \| good
2025-09-05T13:00:00.000Z	82 \| moderate	25.897 \| fine	113.144 \| fine	14.853 \| good	1.271 \| good	10.541 \| good	0.367 \| good
2025-09-05T14:00:00.000Z	86 \| moderate	27.517 \| fine	119.654 \| fine	12.632 \| good	1.243 \| good	10.441 \| good	0.372 \| good
2025-09-05T15:00:00.000Z	82 \| moderate	26.286 \| fine	114.484 \| fine	12.917 \| good	1.215 \| good	10.342 \| good	0.377 \| good
2025-09-05T16:00:00.000Z	79 \| moderate	24.477 \| fine	106.76 \| fine	17.205 \| good	1.46 \| good	9.294 \| good	0.357 \| good
2025-09-05T17:00:00.000Z	79 \| moderate	23.565 \| fine	103.181 \| fine	21.445 \| good	1.705 \| good	8.247 \| good	0.336 \| good
2025-09-05T18:00:00.000Z	77 \| moderate	23.186 \| fine	101.534 \| fine	28.078 \| good	1.95 \| good	7.199 \| good	0.316 \| good
2025-09-05T19:00:00.000Z	79 \| moderate	24.17 \| fine	105.729 \| fine	35.556 \| good	1.864 \| good	6.08 \| good	0.305 \| good
2025-09-05T20:00:00.000Z	81 \| moderate	25.181 \| fine	109.995 \| fine	37.826 \| good	1.778 \| good	4.961 \| good	0.294 \| good
2025-09-05T21:00:00.000Z	82 \| moderate	25.875 \| fine	112.602 \| fine	41.094 \| good	1.692 \| good	3.842 \| good	0.283 \| good

Issaquah

Get reliable air quality data to drive your business

Issaquah, Washington air quality map: Stay updated on AQI near you

0.24ppm

How accurate is Washington, USA air quality data?

Air quality and pollutant data for Washington, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.

Source: Ambee Data Sources

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Frequently asked questions

How often is air quality information updated for Issaquah, Washington?

The air quality information for Issaquah, Washington is updated every hour for accuracy.

What time in the last 24 hours was the air quality in Issaquah, Washington at its worst?

In the past 24 hours, the air quality in Issaquah, Washington was at its worst at 09:00:00 on 2025-09-05.

When did Issaquah, Washington experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Issaquah, Washington was observed at 12:00:00 on 2025-09-05.

What is the AQI in Issaquah, Washington right now?

As of now, the AQI in Issaquah, Washington is 66, indicating Moderate conditions.

What is the most common type of pollution in Issaquah, Washington?

Issaquah, Washington air has the highest levels of PM2.5.

What should I do in case of poor air quality in Issaquah, Washington?

Poor air quality in Issaquah, Washington means it's advisable to stay indoors and wear a mask for your protection.

What is the PM_2.5 level in Issaquah, Washington at the moment?

PM_2.5 levels in Issaquah, Washington are currently 17.47 μg/m³.

What is the PM₁₀ level in Issaquah, Washington at the moment?

The PM₁₀ concentration in Issaquah, Washington is 67.084 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Issaquah, Washington at the moment?

The current carbon monoxide (CO) concentration in Issaquah, Washington is 0.243 ppm.

What is the sulfur dioxide (SO₂) level in Issaquah, Washington at the moment?

Currently, Issaquah, Washington has a sulfur dioxide (SO₂) concentration of 1.187 ppb.

What is the ozone (O₃) level in Issaquah, Washington at the moment?

The current ozone (O₃) level in Issaquah, Washington at the moment is 17.011 ppm.

What is the nitrogen dioxide (NO₂) level in Issaquah, Washington at the moment?

Nitrogen dioxide (NO₂) level in Issaquah, Washington at the moment is 12.753 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-04T00:00:00.000Z	77 \| moderate	22.879 \| fine	87.16 \| fine	48.918 \| good	0.5 \| good	9.52 \| good	0.223 \| good
2025-09-04T01:00:00.000Z	84 \| moderate	14.742 \| fine	122.075 \| fine	47.89 \| good	0.417 \| good	7.72 \| good	0.255 \| good
2025-09-04T02:00:00.000Z	69 \| moderate	18.838 \| fine	63.217 \| fine	42.986 \| good	0.428 \| good	11.874 \| good	0.26 \| good
2025-09-04T03:00:00.000Z	67 \| moderate	18.097 \| fine	72.424 \| fine	41.908 \| good	0.489 \| good	9.431 \| good	0.304 \| good
2025-09-04T04:00:00.000Z	77 \| moderate	23.215 \| fine	91.188 \| fine	39.962 \| good	0.634 \| good	10.262 \| good	0.262 \| good
2025-09-04T05:00:00.000Z	94 \| moderate	31.692 \| fine	133.691 \| fine	31.139 \| good	0.588 \| good	16.006 \| good	0.305 \| good
2025-09-04T06:00:00.000Z	82 \| moderate	26.396 \| fine	85.695 \| fine	23.177 \| good	0.499 \| good	18.421 \| good	0.294 \| good
2025-09-04T07:00:00.000Z	81 \| moderate	25.217 \| fine	88.306 \| fine	20.126 \| good	0.48 \| good	15.13 \| good	0.251 \| good
2025-09-04T08:00:00.000Z	82 \| moderate	25.768 \| fine	110.769 \| fine	14.239 \| good	0.416 \| good	8.573 \| good	0.209 \| good
2025-09-04T09:00:00.000Z	88 \| moderate	29.473 \| fine	58.969 \| fine	12.246 \| good	0.323 \| good	7.474 \| good	0.162 \| good
2025-09-04T10:00:00.000Z	66 \| moderate	17.355 \| fine	66.673 \| fine	10.999 \| good	0.451 \| good	6.464 \| good	0.162 \| good
2025-09-04T11:00:00.000Z	69 \| moderate	18.71 \| fine	80.713 \| fine	8.068 \| good	0.299 \| good	6.204 \| good	0.124 \| good
2025-09-04T12:00:00.000Z	64 \| moderate	15.868 \| fine	51.611 \| good	8.061 \| good	0.233 \| good	8.356 \| good	0.124 \| good
2025-09-04T13:00:00.000Z	82 \| moderate	25.994 \| fine	113.464 \| fine	16.041 \| good	1.392 \| good	10.839 \| good	0.352 \| good
2025-09-04T14:00:00.000Z	62 \| moderate	15.297 \| fine	45.531 \| good	5.13 \| good	0.224 \| good	10.116 \| good	0.192 \| good
2025-09-04T15:00:00.000Z	62 \| moderate	14.983 \| fine	60.496 \| fine	4.111 \| good	0.159 \| good	8.595 \| good	0.162 \| good
2025-09-04T16:00:00.000Z	44 \| good	8.402 \| good	30.062 \| good	5.035 \| good	0.354 \| good	8.27 \| good	0.213 \| good
2025-09-04T17:00:00.000Z	49 \| good	8.946 \| good	36.83 \| good	8.115 \| good	0.588 \| good	11.555 \| good	0.246 \| good
2025-09-04T18:00:00.000Z	60 \| moderate	13.775 \| fine	58.969 \| fine	9.02 \| good	0.643 \| good	12.606 \| good	0.2 \| good
2025-09-04T19:00:00.000Z	58 \| moderate	12.993 \| fine	64.115 \| fine	11.036 \| good	0.575 \| good	13.748 \| good	0.251 \| good
2025-09-04T20:00:00.000Z	52 \| moderate	10.421 \| good	44.108 \| good	14.049 \| good	0.623 \| good	11.432 \| good	0.2 \| good
2025-09-04T21:00:00.000Z	56 \| moderate	10.692 \| good	66.2 \| fine	18.993 \| good	0.63 \| good	14.449 \| good	0.251 \| good
2025-09-04T22:00:00.000Z	56 \| moderate	11.88 \| good	47.703 \| good	24.935 \| good	0.736 \| good	16.34 \| good	0.332 \| good
2025-09-04T23:00:00.000Z	56 \| moderate	12.143 \| fine	52.803 \| good	25.992 \| good	0.564 \| good	12.156 \| good	0.332 \| good
2025-09-05T00:00:00.000Z	54 \| moderate	11.418 \| good	49.537 \| good	27.085 \| good	0.579 \| good	10.263 \| good	0.287 \| good
2025-09-05T01:00:00.000Z	56 \| moderate	12.43 \| fine	54.664 \| good	22.728 \| good	0.597 \| good	12.914 \| good	0.292 \| good
2025-09-05T02:00:00.000Z	58 \| moderate	12.81 \| fine	48.573 \| good	20.081 \| good	0.664 \| good	13.496 \| good	0.33 \| good
2025-09-05T03:00:00.000Z	58 \| moderate	12.669 \| fine	39.567 \| good	19.139 \| good	0.638 \| good	15.368 \| good	0.286 \| good
2025-09-05T04:00:00.000Z	64 \| moderate	11.835 \| good	81.082 \| fine	17.078 \| good	0.558 \| good	16.491 \| good	0.289 \| good
2025-09-05T05:00:00.000Z	62 \| moderate	14.708 \| fine	65.42 \| fine	12.164 \| good	0.462 \| good	14.149 \| good	0.327 \| good
2025-09-05T06:00:00.000Z	71 \| moderate	19.614 \| fine	85.146 \| fine	9.29 \| good	0.652 \| good	13.081 \| good	0.372 \| good
2025-09-05T07:00:00.000Z	62 \| moderate	14.63 \| fine	51.843 \| good	9.222 \| good	0.398 \| good	17.341 \| good	0.284 \| good
2025-09-05T08:00:00.000Z	62 \| moderate	14.617 \| fine	47.272 \| good	4.386 \| good	0.39 \| good	18.542 \| good	0.2 \| good
2025-09-05T09:00:00.000Z	60 \| moderate	14.213 \| fine	73.284 \| fine	3.343 \| good	0.405 \| good	11.841 \| good	0.162 \| good
2025-09-05T10:00:00.000Z	60 \| moderate	14.327 \| fine	57.402 \| fine	2.178 \| good	0.414 \| good	10.251 \| good	0.162 \| good
2025-09-05T11:00:00.000Z	64 \| moderate	15.826 \| fine	52.778 \| good	3.015 \| good	0.378 \| good	9.976 \| good	0.169 \| good
2025-09-05T12:00:00.000Z	69 \| moderate	19.19 \| fine	60.739 \| fine	2.542 \| good	0.369 \| good	10.307 \| good	0.2 \| good
2025-09-05T13:00:00.000Z	74 \| moderate	20.815 \| fine	102.174 \| fine	2.209 \| good	0.298 \| good	9.613 \| good	0.194 \| good
2025-09-05T14:00:00.000Z	66 \| moderate	16.578 \| fine	65.252 \| fine	2.165 \| good	0.573 \| good	9.287 \| good	0.278 \| good
2025-09-05T15:00:00.000Z	64 \| moderate	12.258 \| fine	81.158 \| fine	2.079 \| good	0.603 \| good	9.758 \| good	0.278 \| good
2025-09-05T16:00:00.000Z	58 \| moderate	12.538 \| fine	64.114 \| fine	2.12 \| good	0.789 \| good	9.39 \| good	0.243 \| good
2025-09-05T17:00:00.000Z	66 \| moderate	13.116 \| fine	84.913 \| fine	3.13 \| good	0.846 \| good	10.566 \| good	0.287 \| good
2025-09-05T18:00:00.000Z	62 \| moderate	14.64 \| fine	69.861 \| fine	6.206 \| good	0.956 \| good	13.767 \| good	0.3 \| good
2025-09-05T19:00:00.000Z	58 \| moderate	12.902 \| fine	29.213 \| good	8.079 \| good	1.026 \| good	13.023 \| good	0.294 \| good
2025-09-05T20:00:00.000Z	69 \| moderate	19.051 \| fine	78.089 \| fine	9.113 \| good	0.761 \| good	8.979 \| good	0.249 \| good
2025-09-05T21:00:00.000Z	77 \| moderate	22.596 \| fine	94.143 \| fine	15.141 \| good	0.66 \| good	13.175 \| good	0.255 \| good
2025-09-05T22:00:00.000Z	66 \| moderate	17.47 \| fine	67.084 \| fine	17.011 \| good	1.187 \| good	12.753 \| good	0.243 \| good
2025-09-05T23:00:00.000Z	66 \| moderate	17.47 \| fine	67.084 \| fine	17.011 \| good	1.187 \| good	12.753 \| good	0.243 \| good
2025-09-03T22:00:00.000Z	66 \| moderate	17.442 \| fine	77.288 \| fine	54.791 \| good	1.775 \| good	3.088 \| good	0.255 \| good
2025-09-03T23:00:00.000Z	71 \| moderate	19.577 \| fine	86.405 \| fine	56.703 \| fine	1.895 \| good	2.998 \| good	0.25 \| good
2025-09-04T00:00:00.000Z	75 \| moderate	22.346 \| fine	97.758 \| fine	54.786 \| good	2.015 \| good	2.908 \| good	0.244 \| good
2025-09-04T01:00:00.000Z	82 \| moderate	25.906 \| fine	112.924 \| fine	50.573 \| good	2.089 \| good	7.894 \| good	0.288 \| good
2025-09-04T02:00:00.000Z	86 \| moderate	28.031 \| fine	121.909 \| fine	44.499 \| good	2.163 \| good	12.879 \| good	0.331 \| good
2025-09-04T03:00:00.000Z	88 \| moderate	29.026 \| fine	126.073 \| fine	37.315 \| good	2.237 \| good	17.865 \| good	0.375 \| good
2025-09-04T04:00:00.000Z	88 \| moderate	28.601 \| fine	124.284 \| fine	29.166 \| good	2.185 \| good	19.191 \| good	0.393 \| good
2025-09-04T05:00:00.000Z	86 \| moderate	28.268 \| fine	122.735 \| fine	26.81 \| good	2.134 \| good	20.517 \| good	0.412 \| good
2025-09-04T06:00:00.000Z	86 \| moderate	28.479 \| fine	123.394 \| fine	25.027 \| good	2.083 \| good	21.843 \| good	0.43 \| good
2025-09-04T07:00:00.000Z	88 \| moderate	28.74 \| fine	124.803 \| fine	24.52 \| good	2.003 \| good	19.541 \| good	0.416 \| good
2025-09-04T08:00:00.000Z	88 \| moderate	28.579 \| fine	123.715 \| fine	21.741 \| good	1.923 \| good	17.24 \| good	0.402 \| good
2025-09-04T09:00:00.000Z	88 \| moderate	28.962 \| fine	125.727 \| fine	19.98 \| good	1.843 \| good	14.939 \| good	0.387 \| good
2025-09-04T10:00:00.000Z	88 \| moderate	29.045 \| fine	125.876 \| fine	19.908 \| good	1.762 \| good	13.062 \| good	0.368 \| good
2025-09-04T11:00:00.000Z	86 \| moderate	28.236 \| fine	122.923 \| fine	20.427 \| good	1.682 \| good	11.185 \| good	0.349 \| good
2025-09-04T12:00:00.000Z	86 \| moderate	27.576 \| fine	120.009 \| fine	20.22 \| good	1.601 \| good	9.308 \| good	0.33 \| good
2025-09-04T13:00:00.000Z	84 \| moderate	27.462 \| fine	119.502 \| fine	16.774 \| good	1.553 \| good	9.804 \| good	0.335 \| good
2025-09-04T14:00:00.000Z	86 \| moderate	27.88 \| fine	121.552 \| fine	13.216 \| good	1.506 \| good	10.299 \| good	0.341 \| good
2025-09-04T15:00:00.000Z	82 \| moderate	26.386 \| fine	114.997 \| fine	15.592 \| good	1.458 \| good	10.794 \| good	0.346 \| good
2025-09-04T16:00:00.000Z	81 \| moderate	25.458 \| fine	111.465 \| fine	18.329 \| good	1.804 \| good	10.046 \| good	0.331 \| good
2025-09-04T17:00:00.000Z	81 \| moderate	24.551 \| fine	107.337 \| fine	23.644 \| good	2.149 \| good	9.299 \| good	0.317 \| good
2025-09-04T18:00:00.000Z	77 \| moderate	23.064 \| fine	101.298 \| fine	28.424 \| good	2.494 \| good	8.551 \| good	0.302 \| good
2025-09-04T19:00:00.000Z	77 \| moderate	22.671 \| fine	99.154 \| fine	34.016 \| good	2.418 \| good	8.079 \| good	0.293 \| good
2025-09-04T20:00:00.000Z	75 \| moderate	22.453 \| fine	98 \| fine	40.135 \| good	2.342 \| good	7.608 \| good	0.285 \| good
2025-09-04T21:00:00.000Z	77 \| moderate	22.617 \| fine	99.153 \| fine	50.77 \| good	2.266 \| good	7.137 \| good	0.276 \| good
2025-09-04T22:00:00.000Z	75 \| moderate	22.021 \| fine	96.345 \| fine	57.059 \| fine	2.163 \| good	6.731 \| good	0.268 \| good
2025-09-04T23:00:00.000Z	71 \| moderate	20.432 \| fine	89.978 \| fine	58.727 \| fine	2.061 \| good	6.326 \| good	0.259 \| good
2025-09-05T00:00:00.000Z	67 \| moderate	18.061 \| fine	80.112 \| fine	50.591 \| good	1.958 \| good	5.92 \| good	0.251 \| good
2025-09-05T01:00:00.000Z	67 \| moderate	17.673 \| fine	77.977 \| fine	35.91 \| good	1.952 \| good	12.164 \| good	0.306 \| good
2025-09-05T02:00:00.000Z	69 \| moderate	18.845 \| fine	83.295 \| fine	27.195 \| good	1.947 \| good	18.407 \| good	0.361 \| good
2025-09-05T03:00:00.000Z	71 \| moderate	19.98 \| fine	88.202 \| fine	21.718 \| good	1.941 \| good	24.651 \| good	0.416 \| good
2025-09-05T04:00:00.000Z	71 \| moderate	19.732 \| fine	87.125 \| fine	17.123 \| good	1.953 \| good	26.065 \| good	0.437 \| good
2025-09-05T05:00:00.000Z	71 \| moderate	19.724 \| fine	86.871 \| fine	15.664 \| good	1.966 \| good	27.48 \| good	0.458 \| good
2025-09-05T06:00:00.000Z	71 \| moderate	19.797 \| fine	87.875 \| fine	17.008 \| good	1.978 \| good	28.894 \| good	0.48 \| good
2025-09-05T07:00:00.000Z	71 \| moderate	20.07 \| fine	88.593 \| fine	17.687 \| good	1.87 \| good	25.578 \| good	0.462 \| good
2025-09-05T08:00:00.000Z	71 \| moderate	20.433 \| fine	89.671 \| fine	19.877 \| good	1.762 \| good	22.261 \| good	0.443 \| good
2025-09-05T09:00:00.000Z	73 \| moderate	21.189 \| fine	93.045 \| fine	19.836 \| good	1.654 \| good	18.944 \| good	0.425 \| good
2025-09-05T10:00:00.000Z	75 \| moderate	22.365 \| fine	97.698 \| fine	18.093 \| good	1.536 \| good	16.176 \| good	0.404 \| good
2025-09-05T11:00:00.000Z	77 \| moderate	23.353 \| fine	102.048 \| fine	16.916 \| good	1.417 \| good	13.408 \| good	0.383 \| good
2025-09-05T12:00:00.000Z	79 \| moderate	24.356 \| fine	106.486 \| fine	17.21 \| good	1.298 \| good	10.64 \| good	0.362 \| good
2025-09-05T13:00:00.000Z	82 \| moderate	25.897 \| fine	113.144 \| fine	14.853 \| good	1.271 \| good	10.541 \| good	0.367 \| good
2025-09-05T14:00:00.000Z	86 \| moderate	27.517 \| fine	119.654 \| fine	12.632 \| good	1.243 \| good	10.441 \| good	0.372 \| good
2025-09-05T15:00:00.000Z	82 \| moderate	26.286 \| fine	114.484 \| fine	12.917 \| good	1.215 \| good	10.342 \| good	0.377 \| good
2025-09-05T16:00:00.000Z	79 \| moderate	24.477 \| fine	106.76 \| fine	17.205 \| good	1.46 \| good	9.294 \| good	0.357 \| good
2025-09-05T17:00:00.000Z	79 \| moderate	23.565 \| fine	103.181 \| fine	21.445 \| good	1.705 \| good	8.247 \| good	0.336 \| good
2025-09-05T18:00:00.000Z	77 \| moderate	23.186 \| fine	101.534 \| fine	28.078 \| good	1.95 \| good	7.199 \| good	0.316 \| good
2025-09-05T19:00:00.000Z	79 \| moderate	24.17 \| fine	105.729 \| fine	35.556 \| good	1.864 \| good	6.08 \| good	0.305 \| good
2025-09-05T20:00:00.000Z	81 \| moderate	25.181 \| fine	109.995 \| fine	37.826 \| good	1.778 \| good	4.961 \| good	0.294 \| good
2025-09-05T21:00:00.000Z	82 \| moderate	25.875 \| fine	112.602 \| fine	41.094 \| good	1.692 \| good	3.842 \| good	0.283 \| good

Live air quality index in Issaquah, Washington today

Major air pollutants in Issaquah, Washington

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Issaquah, Washington air quality forecast and history

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Issaquah, Washington air quality map: Stay updated on AQI near you

Air quality in nearby cities

East Renton Highlands, Washington

Sammamish, Washington

Newcastle, Washington

Fairwood CDP, Washington

Renton, Washington

Mercer Island, Washington

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Frequently asked questions

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What is the PM2.5 level in Issaquah, Washington at the moment?

What is the PM10 level in Issaquah, Washington at the moment?

What is the carbon monoxide (CO) level in Issaquah, Washington at the moment?

What is the sulfur dioxide (SO2) level in Issaquah, Washington at the moment?

What is the ozone (O3) level in Issaquah, Washington at the moment?

What is the nitrogen dioxide (NO2) level in Issaquah, Washington at the moment?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the PM_2.5 level in Issaquah, Washington at the moment?

What is the PM₁₀ level in Issaquah, Washington at the moment?

What is the sulfur dioxide (SO₂) level in Issaquah, Washington at the moment?

What is the ozone (O₃) level in Issaquah, Washington at the moment?

What is the nitrogen dioxide (NO₂) level in Issaquah, Washington at the moment?