Hourly Weather | Today Thursday, February 5, 2026
Waterloo, Iowa
9 PM
Night
28°
Feels Like 27°
0
Humidity: 93%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
30°
Feels Like 27°
0
Humidity: 90%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
30°
Feels Like 27°
0
Frost Risk: 88%
Humidity: 90%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 4.76 µg/m³
  • PM10: 5.81 µg/m³
  • O3: 0.028 ppm
  • NO2: 6 ppb
  • SO2: 0.1 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.56 µg/m³
  • PM10: 5.51 µg/m³
  • O3: 0.029 ppm
  • NO2: 4.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.23 µg/m³
  • PM10: 5.06 µg/m³
  • O3: 0.030 ppm
  • NO2: 4.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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