Hourly Weather | Today Wednesday, July 15, 2026
Active Weather Warnings
Billings, Montana
5 PM
Stormy Weather
90°
Feels Like 88°
59
Humidity: 50%
UV Index: 1
Wind: 9 mph
6 PM
Cloudy Weather
88°
Feels Like 90°
49
Humidity: 52%
UV Index: 1
Wind: 9 mph
7 PM
Sunny with a Chance of Thunderstorms
84°
Feels Like 84°
65
Humidity: 61%
UV Index: 1
Wind: 8 mph
8 PM
Sunny with a Chance of Thunderstorms
82°
Feels Like 82°
58
Humidity: 66%
UV Index: 0
Wind: 8 mph
9 PM
Sunny with a Chance of Thunderstorms
79°
Feels Like 79°
53
Humidity: 71%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Night
75°
Feels Like 77°
49
Humidity: 76%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
73°
Feels Like 73°
34
Humidity: 81%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3.35 µg/m³
  • PM10: 4.43 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.34 µg/m³
  • PM10: 4.28 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.18 µg/m³
  • PM10: 3.98 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.99 µg/m³
  • PM10: 3.71 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.9 µg/m³
  • PM10: 3.58 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 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: 2.83 µg/m³
  • PM10: 3.47 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.8 µg/m³
  • PM10: 3.39 µg/m³
  • O3: 0.035 ppm
  • NO2: 1 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Billings

Severe Future Possible

Flood Watch

Flood Watch issued July 15 at 1:50PM MDT until July 16 at 3:00AM MDT by NWS Billings MT
Jul 15, 1:50 PM Jul 16, 3:00 AM
WHAT: Flash flooding caused by excessive rainfall from
thunderstorms is possible. The risk of flash flooding includes
recent burn scars such as the Robertson Draw and East Side Fires
south of Red Lodge, and the Elk Fire along the eastern slopes of
the Bighorn Mountains.

WHERE: Portions of Montana, including the following areas,
Absaroka/Beartooth Mountains, Beartooth Foothills, Bighorn Canyon,
Golden Valley, Livingston Area, Melville Foothills, Musselshell,
Northeastern Yellowstone, Northern Big Horn, Northern Carbon,
Northern Stillwater, Northern Sweet Grass, Paradise Valley,
Pryor/Northern Bighorn Mountains, Red Lodge Foothills, Southeastern
Carbon, Southern Big Horn and Southwestern Yellowstone and north
central Wyoming, including the following areas, Northeast Bighorn
Mountains and Sheridan Foothills.

WHEN: Through late tonight.

IMPACTS: Excessive runoff may result in flooding of rivers,
creeks, and other low-lying and flood-prone locations. Flooding may
occur in poor drainage and urban areas.

ADDITIONAL DETAILS:
- Expect slow-moving thunderstorms capable of producing very high
rainfall rates.
- http://www.weather.gov/safety/flood
+ Read More
Monitor the latest forecast and be prepared to take action should Flash Flood Warnings be issued.
Updated: Jul 15, 4:02 PM Source: NWS Alert