Stay updated with real-time air quality in Fort Madison, Iowa 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)
40
Good
Fort Madison, Iowa
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.67 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
24.14 μg/m³
0
55
155
255
425
605+
43.10 ppb
0
55
71
86
201
201+
0.13 ppb
0
36
76
186
605
1005+
1.32 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Fort Madison, Iowa
Fort Madison, Iowa
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AQI 38
Good
5.17μg/m³
PM2.5
22.10μg/m³
PM10
41.19ppb
O3
0.14ppb
SO2
1.31ppb
NO2
0.14ppm
CO
AQI 40
Good
5.30μg/m³
PM2.5
23.00μg/m³
PM10
43.24ppb
O3
0.27ppb
SO2
1.33ppb
NO2
0.14ppm
CO
AQI 52
Moderate
9.66μg/m³
PM2.5
27.20μg/m³
PM10
44.78ppb
O3
1.30ppb
SO2
2.38ppb
NO2
0.22ppm
CO
AQI 44
Good
7.91μg/m³
PM2.5
34.12μg/m³
PM10
46.01ppb
O3
0.62ppb
SO2
1.60ppb
NO2
0.15ppm
CO
AQI 54
Moderate
10.71μg/m³
PM2.5
48.04μg/m³
PM10
39.52ppb
O3
3.47ppb
SO2
2.50ppb
NO2
0.19ppm
CO
AQI 52
Moderate
10.43μg/m³
PM2.5
34.28μg/m³
PM10
39.39ppb
O3
1.42ppb
SO2
1.87ppb
NO2
0.24ppm
CO
Air quality data and pollutant measurements for Iowa, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Fort Madison, Iowa is updated every hour.
The worst air quality in Fort Madison, Iowa in the last 24 hours was observed at 04:00:00 on 2026-04-23.
In the last 24 hrs, the best air quality in Fort Madison, Iowa was observed at 12:00:00 on 2026-04-23.
The current air quality in Fort Madison, Iowa is 40, categorized as Good based on real-time data.
The most common pollutant in Fort Madison, Iowa is O3.
If the air quality in Fort Madison, Iowa is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Fort Madison, Iowa is 5.673 μg/m3.
The current PM10 concentration at Fort Madison, Iowa is 24.139 μg/m3.
The current carbon monoxide (CO) concentration at Fort Madison, Iowa is 0.136 ppm.
The current sulfur dioxide (SO2) concentration at Fort Madison, Iowa is 0.133 ppb.
The current ozone (O3) concentration at Fort Madison, Iowa is 43.104 ppm.
The current nitrogen dioxide (NO2) concentration at Fort Madison, Iowa is 1.318 ppb.
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