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

Sky Warn 2026

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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

68°F

20°C

Humidity 53%
Wind Speed E 11 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Last update 26 May 11:45 PM MDT
Extended Forecast for

Westby MT

Heat Advisory May 27, 12:00pm until May 28, 10:00pm
Red Flag Warning May 27, 12:00pm until May 27, 10:00pm
Red Flag Warning May 28, 12:00pm until May 28, 10:00pm
Click here for hazard details and duration
Heat Advisory
Red Flag Warning
Red Flag Warning

  • Overnight

    Overnight: Partly cloudy, with a low around 62. Breezy, with an east wind 21 to 23 mph, with gusts as high as 34 mph.

    Low: 62 °F

    Partly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 95. Windy, with a southeast wind 20 to 25 mph increasing to 27 to 32 mph in the afternoon. Winds could gust as high as 44 mph.

    High: 95 °F

    Mostly Sunny
    and Windy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 67. Breezy, with a southeast wind 20 to 29 mph, with gusts as high as 44 mph.

    Low: 67 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Thursday

    Thursday: Sunny and hot, with a high near 98. Windy, with a south wind 20 to 25 mph increasing to 27 to 32 mph in the afternoon. Winds could gust as high as 43 mph.

    High: 98 °F

    Hot and Windy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 68. Windy, with a south southeast wind 25 to 30 mph decreasing to 18 to 23 mph after midnight. Winds could gust as high as 41 mph.

    Low: 68 °F

    Partly Cloudy
    and Windy

  • Friday

    Friday: Mostly sunny and hot, with a high near 97. Breezy, with a south southeast wind 17 to 22 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 38 mph.

    High: 97 °F

    Hot and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 65. Windy, with a southeast wind 20 to 30 mph, with gusts as high as 41 mph.

    Low: 65 °F

    Partly Cloudy
    and Windy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 91. Windy, with a southeast wind 18 to 23 mph increasing to 31 to 36 mph in the afternoon. Winds could gust as high as 46 mph.

    High: 91 °F

    Partly Sunny
    and Breezy
    then Chance
    Showers and
    Windy

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 61. Windy, with a southeast wind 28 to 33 mph decreasing to 18 to 23 mph after midnight. Winds could gust as high as 46 mph. Chance of precipitation is 50%.

    Low: 61 °F

    Chance
    Showers and
    Windy

Detailed Forecast

Overnight
Partly cloudy, with a low around 62. Breezy, with an east wind 21 to 23 mph, with gusts as high as 34 mph.
Wednesday
Mostly sunny, with a high near 95. Windy, with a southeast wind 20 to 25 mph increasing to 27 to 32 mph in the afternoon. Winds could gust as high as 44 mph.
Wednesday Night
Partly cloudy, with a low around 67. Breezy, with a southeast wind 20 to 29 mph, with gusts as high as 44 mph.
Thursday
Sunny and hot, with a high near 98. Windy, with a south wind 20 to 25 mph increasing to 27 to 32 mph in the afternoon. Winds could gust as high as 43 mph.
Thursday Night
Partly cloudy, with a low around 68. Windy, with a south southeast wind 25 to 30 mph decreasing to 18 to 23 mph after midnight. Winds could gust as high as 41 mph.
Friday
Mostly sunny and hot, with a high near 97. Breezy, with a south southeast wind 17 to 22 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 38 mph.
Friday Night
Partly cloudy, with a low around 65. Windy, with a southeast wind 20 to 30 mph, with gusts as high as 41 mph.
Saturday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 91. Windy, with a southeast wind 18 to 23 mph increasing to 31 to 36 mph in the afternoon. Winds could gust as high as 46 mph.
Saturday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 61. Windy, with a southeast wind 28 to 33 mph decreasing to 18 to 23 mph after midnight. Winds could gust as high as 46 mph. Chance of precipitation is 50%.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 84. Breezy, with a southeast wind 18 to 23 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 40%.
Sunday Night
A 30 percent chance of showers. Partly cloudy, with a low around 54. Breezy, with a south wind 20 to 25 mph becoming west 13 to 18 mph after midnight. Winds could gust as high as 36 mph.
Monday
A slight chance of showers. Partly sunny, with a high near 80.
Monday Night
A chance of showers. Mostly cloudy, with a low around 50.
Tuesday
A chance of showers. Partly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westby MT
 48.87°N 104.05°W (Elev. 1991 ft)
Last Update:
4:16 pm MDT May 26, 2026
Forecast Valid:
12am MDT May 27, 2026-6pm MDT Jun 2, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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