Hourly Weather | Today Friday, June 5, 2026
Billings, Montana
10 AM
Cloudy Weather
70°
Feels Like 75°
0
Humidity: 45%
UV Index: 5
Wind: 6 mph
11 AM
Cloudy Weather
75°
Feels Like 82°
0
Humidity: 38%
UV Index: 7
Wind: 6 mph
12 PM
Cloudy Weather
79°
Feels Like 88°
0
Humidity: 34%
UV Index: 9
Wind: 7 mph
1 PM
Sunny Weather
82°
Feels Like 90°
0
Humidity: 29%
UV Index: 10
Wind: 7 mph
2 PM
Sunny Weather
84°
Feels Like 91°
0
Humidity: 25%
UV Index: 9
Wind: 8 mph
3 PM
Cloudy Weather
88°
Feels Like 93°
0
Humidity: 22%
UV Index: 7
Wind: 8 mph
4 PM
Cloudy Weather
90°
Feels Like 91°
0
Humidity: 20%
UV Index: 5
Wind: 8 mph
5 PM
Cloudy Weather
91°
Feels Like 91°
0
Humidity: 19%
UV Index: 4
Wind: 8 mph
6 PM
Cloudy Weather
90°
Feels Like 90°
0
Humidity: 19%
UV Index: 2
Wind: 8 mph
7 PM
Cloudy Weather
88°
Feels Like 86°
0
Humidity: 22%
UV Index: 1
Wind: 8 mph
8 PM
Cloudy Weather
84°
Feels Like 82°
0
Humidity: 25%
UV Index: 1
Wind: 8 mph
9 PM
Cloudy Weather
82°
Feels Like 79°
0
Humidity: 31%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Night
79°
Feels Like 75°
0
Humidity: 35%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
75°
Feels Like 72°
0
Humidity: 38%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

10 AM
63 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.26 µg/m³
  • PM10: 2.97 µg/m³
  • O3: 0.058 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

11 AM
73 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.26 µg/m³
  • PM10: 2.96 µg/m³
  • O3: 0.061 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

12 PM
74 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.25 µg/m³
  • PM10: 2.94 µg/m³
  • O3: 0.062 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

1 PM
79 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.25 µg/m³
  • PM10: 2.92 µg/m³
  • O3: 0.063 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

2 PM
77 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.19 µg/m³
  • PM10: 2.8 µg/m³
  • O3: 0.063 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

3 PM
71 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.11 µg/m³
  • PM10: 2.6 µg/m³
  • O3: 0.061 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

4 PM
63 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.97 µg/m³
  • PM10: 2.24 µg/m³
  • O3: 0.058 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.79 µg/m³
  • PM10: 1.77 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.69 µg/m³
  • PM10: 1.49 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.69 µg/m³
  • PM10: 1.35 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.74 µg/m³
  • PM10: 1.38 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.5 ppb
  • SO2: 0 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.82 µg/m³
  • PM10: 1.53 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.6 ppb
  • SO2: 0 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.89 µg/m³
  • PM10: 1.71 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.6 ppb
  • SO2: 0 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.97 µg/m³
  • PM10: 1.87 µg/m³
  • O3: 0.039 ppm
  • NO2: 0.6 ppb
  • SO2: 0 ppb
  • CO: 0.07 ppm

Health Recommendations:

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