Hourly Weather | Today Wednesday, May 20, 2026
Missoula, Montana
5 PM
Rainy Weather
57°
Feels Like 52°
55
Humidity: 61%
UV Index: 1
Wind: 9 mph
6 PM
Cloudy Weather
57°
Feels Like 55°
49
Humidity: 62%
UV Index: 1
Wind: 9 mph
7 PM
Cloudy Weather
55°
Feels Like 54°
49
Humidity: 61%
UV Index: 1
Wind: 9 mph
8 PM
Rainy Weather
54°
Feels Like 46°
58
Humidity: 68%
UV Index: 0
Wind: 8 mph
9 PM
Rainy Weather
52°
Feels Like 45°
58
Humidity: 76%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Weather
48°
Feels Like 45°
49
Humidity: 83%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Weather
45°
Feels Like 43°
34
Humidity: 90%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.039 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.038 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.036 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.034 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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