Hourly Weather | Today Tuesday, July 21, 2026
Missoula, Montana
2 AM
Cloudy Weather
64°
Feels Like 63°
0
Humidity: 70%
UV Index: 0
Wind: 8 mph
3 AM
Cloudy Night
64°
Feels Like 63°
0
Humidity: 66%
UV Index: 0
Wind: 8 mph
4 AM
Cloudy Night
64°
Feels Like 63°
0
Humidity: 65%
UV Index: 0
Wind: 8 mph
5 AM
Cloudy Night
64°
Feels Like 63°
0
Humidity: 65%
UV Index: 0
Wind: 8 mph
6 AM
Cloudy Night
64°
Feels Like 63°
0
Humidity: 66%
UV Index: 0
Wind: 7 mph
7 AM
Cloudy Weather
64°
Feels Like 64°
0
Humidity: 63%
UV Index: 1
Wind: 7 mph
8 AM
Cloudy Weather
68°
Feels Like 70°
0
Humidity: 57%
UV Index: 2
Wind: 7 mph
9 AM
Cloudy Weather
72°
Feels Like 73°
0
Humidity: 51%
UV Index: 3
Wind: 8 mph
10 AM
Cloudy Weather
75°
Feels Like 79°
0
Humidity: 45%
UV Index: 5
Wind: 8 mph
11 AM
Cloudy Weather
79°
Feels Like 84°
0
Humidity: 40%
UV Index: 6
Wind: 8 mph
12 PM
Cloudy Weather
82°
Feels Like 88°
0
Humidity: 36%
UV Index: 8
Wind: 8 mph
1 PM
Cloudy Weather
84°
Feels Like 91°
0
Humidity: 32%
UV Index: 9
Wind: 8 mph
2 PM
Cloudy Weather
88°
Feels Like 93°
0
Humidity: 29%
UV Index: 8
Wind: 8 mph
3 PM
Cloudy Weather
90°
Feels Like 93°
0
Humidity: 27%
UV Index: 6
Wind: 8 mph
4 PM
Cloudy Weather
91°
Feels Like 93°
0
Humidity: 25%
UV Index: 5
Wind: 8 mph
5 PM
Cloudy Weather
93°
Feels Like 93°
0
Humidity: 24%
UV Index: 3
Wind: 8 mph
6 PM
Cloudy Weather
91°
Feels Like 91°
0
Humidity: 25%
UV Index: 2
Wind: 8 mph
7 PM
Cloudy Weather
91°
Feels Like 90°
0
Humidity: 27%
UV Index: 1
Wind: 8 mph
8 PM
Cloudy Weather
88°
Feels Like 84°
0
Humidity: 31%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Weather
84°
Feels Like 82°
0
Humidity: 36%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
81°
Feels Like 79°
0
Humidity: 43%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Night
77°
Feels Like 75°
0
Humidity: 49%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

2 AM
68 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 20.48 µg/m³
  • PM10: 20.66 µg/m³
  • O3: 0.029 ppm
  • NO2: 0.7 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

3 AM
67 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 19.84 µg/m³
  • PM10: 20.01 µg/m³
  • O3: 0.027 ppm
  • NO2: 0.6 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

4 AM
65 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 19.08 µg/m³
  • PM10: 19.24 µg/m³
  • O3: 0.025 ppm
  • NO2: 0.6 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 AM
64 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 18.66 µg/m³
  • PM10: 18.82 µg/m³
  • O3: 0.023 ppm
  • NO2: 0.5 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 AM
64 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 18.57 µg/m³
  • PM10: 18.72 µg/m³
  • O3: 0.022 ppm
  • NO2: 0.5 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

7 AM
64 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 18.39 µg/m³
  • PM10: 18.54 µg/m³
  • O3: 0.020 ppm
  • NO2: 0.5 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

8 AM
63 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 18.13 µg/m³
  • PM10: 18.27 µg/m³
  • O3: 0.018 ppm
  • NO2: 0.6 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

9 AM
63 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 17.95 µg/m³
  • PM10: 18.1 µg/m³
  • O3: 0.019 ppm
  • NO2: 0.5 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

10 AM
60 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.84 µg/m³
  • PM10: 17.08 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.5 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

11 AM
59 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.32 µg/m³
  • PM10: 16.59 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.4 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

12 PM
58 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.95 µg/m³
  • PM10: 16.24 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.4 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

1 PM
61 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.99 µg/m³
  • PM10: 17.31 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.4 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

2 PM
62 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 17.45 µg/m³
  • PM10: 17.76 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.4 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

3 PM
61 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 17.26 µg/m³
  • PM10: 17.57 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.4 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

4 PM
61 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 17.35 µg/m³
  • PM10: 17.65 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.4 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 PM
61 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 17.33 µg/m³
  • PM10: 17.62 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 PM
61 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 17.31 µg/m³
  • PM10: 17.59 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

7 PM
60 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.86 µg/m³
  • PM10: 17.14 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

8 PM
60 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.45 µg/m³
  • PM10: 16.7 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.7 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

9 PM
59 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.3 µg/m³
  • PM10: 16.55 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.7 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

10 PM
59 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.08 µg/m³
  • PM10: 16.32 µg/m³
  • O3: 0.039 ppm
  • NO2: 0.8 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

11 PM
59 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.14 µg/m³
  • PM10: 16.37 µg/m³
  • O3: 0.039 ppm
  • NO2: 0.8 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.