Hourly Weather | Today Monday, September 21, 2026
Iowa City, Iowa
3 PM
Cloudy Weather
63°
Feels Like 61°
34
Humidity: 88%
UV Index: 1
Wind: 10 mph
4 PM
Cloudy Weather
63°
Feels Like 59°
40
Humidity: 88%
UV Index: 1
Wind: 10 mph
5 PM
Rainy Weather
61°
Feels Like 55°
56
Humidity: 87%
UV Index: 0
Wind: 9 mph
6 PM
Cloudy Weather
61°
Feels Like 57°
49
Humidity: 87%
UV Index: 0
Wind: 9 mph
7 PM
Cloudy Weather
61°
Feels Like 57°
44
Humidity: 88%
UV Index: 0
Wind: 9 mph
8 PM
Cloudy Weather
57°
Feels Like 54°
34
Humidity: 95%
UV Index: 0
Wind: 9 mph
9 PM
Cloudy Weather
57°
Feels Like 54°
34
Humidity: 93%
UV Index: 0
Wind: 9 mph
10 PM
Cloudy Weather
57°
Feels Like 54°
39
Humidity: 92%
UV Index: 0
Wind: 9 mph
11 PM
Cloudy Weather
57°
Feels Like 54°
49
Humidity: 92%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

3 PM
23 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.45 µg/m³
  • PM10: 3.57 µg/m³
  • O3: 0.025 ppm
  • NO2: 1.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 PM
24 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.23 µg/m³
  • PM10: 3.34 µg/m³
  • O3: 0.026 ppm
  • NO2: 2 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 PM
24 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.9 µg/m³
  • PM10: 3.01 µg/m³
  • O3: 0.026 ppm
  • NO2: 2.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 PM
23 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.59 µg/m³
  • PM10: 2.7 µg/m³
  • O3: 0.025 ppm
  • NO2: 2.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 PM
23 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.39 µg/m³
  • PM10: 2.51 µg/m³
  • O3: 0.024 ppm
  • NO2: 2.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 PM
22 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.29 µg/m³
  • PM10: 2.42 µg/m³
  • O3: 0.023 ppm
  • NO2: 2.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.3 µg/m³
  • PM10: 2.42 µg/m³
  • O3: 0.022 ppm
  • NO2: 2.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
20 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.38 µg/m³
  • PM10: 2.52 µg/m³
  • O3: 0.022 ppm
  • NO2: 2.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
20 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.5 µg/m³
  • PM10: 2.66 µg/m³
  • O3: 0.021 ppm
  • NO2: 2.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.