Stay updated with real-time air quality in Rexburg, Idaho featuring accurate data on AQI, PM2.5, 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)
33
Good
Rexburg, Idaho
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.63 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.28 μg/m³
0
55
155
255
425
605+
36.48 ppb
0
55
71
86
201
201+
0.67 ppb
0
36
76
186
605
1005+
0.88 ppb
0
54
101
361
1250
2050+
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Rexburg, Idaho
Rexburg, Idaho
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AQI 31
Good
2.12μg/m³
PM2.5
9.18μg/m³
PM10
33.59ppb
O3
0.55ppb
SO2
1.61ppb
NO2
0.12ppm
CO
AQI 31
Good
2.10μg/m³
PM2.5
9.04μg/m³
PM10
33.69ppb
O3
0.55ppb
SO2
1.56ppb
NO2
0.12ppm
CO
AQI 25
Good
2.08μg/m³
PM2.5
11.08μg/m³
PM10
27.44ppb
O3
0.54ppb
SO2
2.61ppb
NO2
0.12ppm
CO
AQI 35
Good
1.73μg/m³
PM2.5
8.24μg/m³
PM10
37.52ppb
O3
0.60ppb
SO2
1.17ppb
NO2
0.12ppm
CO
AQI 25
Good
2.51μg/m³
PM2.5
13.75μg/m³
PM10
26.53ppb
O3
0.59ppb
SO2
3.19ppb
NO2
0.13ppm
CO
AQI 23
Good
2.50μg/m³
PM2.5
14.00μg/m³
PM10
25.12ppb
O3
0.58ppb
SO2
3.16ppb
NO2
0.13ppm
CO
Air quality measurements for Idaho, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Rexburg, Idaho is updated on an hourly basis.
The worst air quality in Rexburg, Idaho was recorded at 01:00:00 on 2026-06-08.
The best air quality in Rexburg, Idaho was recorded at 10:00:00 on 2026-06-08.
The real-time air quality index in Rexburg, Idaho is 33, currently categorized as Good.
The most common pollutant in Rexburg, Idaho is O3.
If the air quality in Rexburg, Idaho is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Rexburg, Idaho at present are 1.626 μg/m3.
The current PM10 levels in Rexburg, Idaho are 9.276 μg/m3.
The current carbon monoxide (CO) level in Rexburg, Idaho is 0.131 ppm.
The current sulfur dioxide (SO2) levels in Rexburg, Idaho are 0.673 ppb.
The current ozone (O3) levels at Rexburg, Idaho is 36.48 ppm.
The current nitrogen dioxide (NO2) levels at Rexburg, Idaho is 0.875 ppb.
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