National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms and Critical Fire Weather Wednesday

Scattered severe thunderstorms are possible across portions of the northern High Plains Wednesday afternoon and evening. Severe wind gusts are the primary hazard. Gusty winds and low relative humidity will contribute to critical fire weather conditions across parts of the northern Great Plains and Great Basin Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Comertown Turn-Off MT-5 MP 13.4 (MTCOM)

Lat: 48.81°NLon: 104.2529°WElev: 2359.0ft.

NA

55°F

13°C

Humidity 27%
Wind Speed SE 4 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Last update 13 May 01:45 AM MDT
Extended Forecast for

Westby MT

High Wind Warning May 14, 06:00am until May 15, 12:00am
Red Flag Warning May 13, 10:00am until May 13, 09:00pm
Click here for hazard details and duration
High Wind Warning
Red Flag Warning

  • Overnight

    Overnight: Partly cloudy, with a low around 43. South southeast wind 3 to 6 mph.

    Low: 43 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 85. Windy, with a south southeast wind 7 to 17 mph increasing to 23 to 33 mph. Winds could gust as high as 43 mph.

    High: 85 °F

    Sunny and
    Windy

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Increasing clouds, with a low around 51. Windy, with a south southeast wind 28 to 34 mph becoming west after midnight. Winds could gust as high as 46 mph. Chance of precipitation is 40%.

    Low: 51 °F

    Chance
    Showers and
    Windy

  • Thursday

    Thursday: Mostly cloudy, with a high near 69. Very windy, with a west southwest wind 31 to 36 mph increasing to 45 to 50 mph in the afternoon. Winds could gust as high as 65 mph.

    High: 69 °F

    Mostly Cloudy
    and Very
    Windy

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 46. Very windy, with a west wind 41 to 46 mph decreasing to 32 to 37 mph after midnight. Winds could gust as high as 65 mph.

    Low: 46 °F

    Slight Chance
    Showers and
    Very Windy

  • Friday

    Friday: Mostly sunny, with a high near 67. Very windy, with a west wind 31 to 36 mph increasing to 38 to 43 mph in the afternoon. Winds could gust as high as 50 mph.

    High: 67 °F

    Mostly Sunny
    and Very
    Windy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 34. Windy, with a west northwest wind 22 to 32 mph decreasing to 6 to 16 mph. Winds could gust as high as 41 mph.

    Low: 34 °F

    Partly Cloudy
    and Windy
    then Partly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 67. West northwest wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph.

    High: 67 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 37. East northeast wind 13 to 17 mph, with gusts as high as 22 mph.

    Low: 37 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 43. South southeast wind 3 to 6 mph.
Wednesday
Sunny, with a high near 85. Windy, with a south southeast wind 7 to 17 mph increasing to 23 to 33 mph. Winds could gust as high as 43 mph.
Wednesday Night
A chance of showers and thunderstorms. Increasing clouds, with a low around 51. Windy, with a south southeast wind 28 to 34 mph becoming west after midnight. Winds could gust as high as 46 mph. Chance of precipitation is 40%.
Thursday
Mostly cloudy, with a high near 69. Very windy, with a west southwest wind 31 to 36 mph increasing to 45 to 50 mph in the afternoon. Winds could gust as high as 65 mph.
Thursday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 46. Very windy, with a west wind 41 to 46 mph decreasing to 32 to 37 mph after midnight. Winds could gust as high as 65 mph.
Friday
Mostly sunny, with a high near 67. Very windy, with a west wind 31 to 36 mph increasing to 38 to 43 mph in the afternoon. Winds could gust as high as 50 mph.
Friday Night
Partly cloudy, with a low around 34. Windy, with a west northwest wind 22 to 32 mph decreasing to 6 to 16 mph. Winds could gust as high as 41 mph.
Saturday
Partly sunny, with a high near 67. West northwest wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph.
Saturday Night
A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 37. East northeast wind 13 to 17 mph, with gusts as high as 22 mph.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 55. Breezy, with a north northeast wind 13 to 18 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 32 mph.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 32. Breezy, with a north northeast wind 15 to 24 mph, with gusts as high as 32 mph.
Monday
A chance of showers. Mostly cloudy, with a high near 55.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
Partly sunny, with a high near 64.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westby MT
 48.89°N 104.06°W (Elev. 1949 ft)
Last Update:
12:46 am MDT May 13, 2026
Forecast Valid:
2am MDT May 13, 2026-6pm MDT May 19, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation