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

Significant Severe Weather in the Upper Midwest; Blizzard Conditions in the Cascades; Heavy Rain and Thunderstorms in Hawaii

Significant severe thunderstorms, including the risk for strong to intense tornadoes, are expected across the Upper Midwest this afternoon and evening. An atmospheric river will bring blizzard conditions to the northern Cascades. A powerful Kona storm is expected to impact Hawaii today into Saturday, bringing heavy rainfall and strong winds. 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

35°F

2°C

Humidity 46%
Wind Speed SSW 3 MPH
Barometer NA
Dewpoint 16°F (-9°C)
Visibility NA
Last update 10 Mar 02:45 PM MDT
Extended Forecast for

8 Miles WNW Westby MT

High Wind Watch March 12, 09:00am until March 12, 06:00pm
Click here for hazard details and duration
High Wind Watch

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 21. North northeast wind around 10 mph becoming south southwest after midnight.

    Low: 21 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 40. West southwest wind 10 to 20 mph, with gusts as high as 26 mph.

    High: 40 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 24. West southwest wind 11 to 16 mph, with gusts as high as 22 mph. Little or no snow accumulation expected.

    Low: 24 °F

    Partly Cloudy
    then Chance
    Snow

  • Thursday

    Thursday: Snow likely. Mostly cloudy, with a high near 36. Windy, with a south southwest wind 10 to 20 mph becoming north 23 to 33 mph in the afternoon. Winds could gust as high as 47 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 36 °F

    Snow Likely
    and Windy

  • Thursday Night

    Thursday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 17. Blustery, with a north wind 19 to 29 mph decreasing to 9 to 19 mph after midnight. Winds could gust as high as 40 mph.

    Low: 17 °F

    Slight Chance
    Snow and
    Blustery

  • Friday

    Friday: A 40 percent chance of snow. Mostly cloudy, with a high near 30. South southeast wind 8 to 13 mph, with gusts as high as 18 mph. New snow accumulation of less than a half inch possible.

    High: 30 °F

    Chance Snow

  • Friday Night

    Friday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 13. North northeast wind 15 to 17 mph. New snow accumulation of less than a half inch possible.

    Low: 13 °F

    Chance Snow

  • Saturday

    Saturday: A 40 percent chance of snow. Mostly cloudy, with a high near 22. Blustery, with a north northeast wind 18 to 24 mph, with gusts as high as 29 mph.

    High: 22 °F

    Chance Snow
    and Blustery

  • Saturday Night

    Saturday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 5. Blustery, with a north wind 14 to 23 mph, with gusts as high as 29 mph.

    Low: 5 °F

    Slight Chance
    Snow and
    Blustery then
    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 21. North northeast wind around 10 mph becoming south southwest after midnight.
Wednesday
Mostly sunny, with a high near 40. West southwest wind 10 to 20 mph, with gusts as high as 26 mph.
Wednesday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 24. West southwest wind 11 to 16 mph, with gusts as high as 22 mph. Little or no snow accumulation expected.
Thursday
Snow likely. Mostly cloudy, with a high near 36. Windy, with a south southwest wind 10 to 20 mph becoming north 23 to 33 mph in the afternoon. Winds could gust as high as 47 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 17. Blustery, with a north wind 19 to 29 mph decreasing to 9 to 19 mph after midnight. Winds could gust as high as 40 mph.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 30. South southeast wind 8 to 13 mph, with gusts as high as 18 mph. New snow accumulation of less than a half inch possible.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 13. North northeast wind 15 to 17 mph. New snow accumulation of less than a half inch possible.
Saturday
A 40 percent chance of snow. Mostly cloudy, with a high near 22. Blustery, with a north northeast wind 18 to 24 mph, with gusts as high as 29 mph.
Saturday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 5. Blustery, with a north wind 14 to 23 mph, with gusts as high as 29 mph.
Sunday
Partly sunny, with a high near 23. West northwest wind 9 to 15 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 6. Northwest wind 9 to 14 mph becoming west southwest after midnight.
Monday
Mostly cloudy, with a high near 29.
Monday Night
A slight chance of snow. Mostly cloudy, with a low around 19.
Tuesday
A chance of rain and snow. Mostly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WNW Westby MT
 48.9°N 104.25°W (Elev. 2231 ft)
Last Update:
3:41 am MDT Mar 10, 2026
Forecast Valid:
3pm MDT Mar 10, 2026-6pm MDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation