Hourly Weather | Today Monday, September 21, 2026
Ames, Iowa
2 PM
Rainy Weather
59°
Feels Like 57°
77
Humidity: 84%
UV Index: 1
Wind: 8 mph
3 PM
Cloudy Weather
61°
Feels Like 57°
49
Humidity: 84%
UV Index: 1
Wind: 8 mph
4 PM
Cloudy Weather
61°
Feels Like 57°
49
Humidity: 83%
UV Index: 1
Wind: 8 mph
5 PM
Rainy Weather
59°
Feels Like 54°
90
Humidity: 86%
UV Index: 0
Wind: 8 mph
6 PM
Rainy Weather
57°
Feels Like 52°
90
Humidity: 89%
UV Index: 0
Wind: 8 mph
7 PM
Rainy Weather
57°
Feels Like 52°
90
Humidity: 94%
UV Index: 0
Wind: 8 mph
8 PM
Cloudy Night
57°
Feels Like 54°
49
Humidity: 93%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Night
57°
Feels Like 54°
49
Humidity: 94%
UV Index: 0
Wind: 8 mph
10 PM
Rainy Night
57°
Feels Like 52°
51
Humidity: 91%
UV Index: 0
Wind: 8 mph
11 PM
Rainy Night
57°
Feels Like 50°
54
Humidity: 90%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 1.45 µg/m³
  • PM10: 1.53 µg/m³
  • O3: 0.024 ppm
  • NO2: 1.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.44 µg/m³
  • PM10: 1.52 µg/m³
  • O3: 0.024 ppm
  • NO2: 1.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.42 µg/m³
  • PM10: 1.48 µg/m³
  • O3: 0.024 ppm
  • NO2: 1.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.36 µg/m³
  • PM10: 1.43 µg/m³
  • O3: 0.024 ppm
  • NO2: 1.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.31 µg/m³
  • PM10: 1.38 µg/m³
  • O3: 0.023 ppm
  • NO2: 1.5 ppb
  • SO2: 0 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.27 µg/m³
  • PM10: 1.33 µg/m³
  • O3: 0.022 ppm
  • NO2: 1.8 ppb
  • SO2: 0 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.22 µg/m³
  • PM10: 1.29 µg/m³
  • O3: 0.021 ppm
  • NO2: 1.9 ppb
  • SO2: 0 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.18 µg/m³
  • PM10: 1.24 µg/m³
  • O3: 0.020 ppm
  • NO2: 1.9 ppb
  • SO2: 0 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.12 µg/m³
  • PM10: 1.18 µg/m³
  • O3: 0.019 ppm
  • NO2: 1.9 ppb
  • SO2: 0 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.06 µg/m³
  • PM10: 1.12 µg/m³
  • O3: 0.018 ppm
  • NO2: 1.9 ppb
  • SO2: 0 ppb
  • CO: 0.16 ppm

Health Recommendations:

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