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

Lewistown Divide MT-200 MP 90.3 (MTLEW)

Lat: 47.07579°NLon: 109.26247°WElev: 4723.0ft.

NA

29°F

-2°C

Humidity 42%
Wind Speed NNW 4 MPH
Barometer NA
Dewpoint 9°F (-13°C)
Visibility NA
Wind Chill25°F (-4°C)
Last update 10 Mar 12:00 PM MDT
Extended Forecast for

9 Miles ENE Lewistown MT

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

  • This Afternoon

    This Afternoon: A 20 percent chance of snow after 3pm. Increasing clouds, with a high near 29. West wind 9 to 13 mph, with gusts as high as 23 mph.

    High: 29 °F

    Slight Chance
    Snow

  • Tonight

    Tonight: A 20 percent chance of snow before 8pm. Partly cloudy, with a low around 17. West wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 17 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Wednesday

    Wednesday: Increasing clouds, with a high near 34. Breezy, with a west wind 14 to 22 mph, with gusts as high as 40 mph.

    High: 34 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow. Patchy blowing snow before 9pm. Cloudy, with a low around 30. Breezy, with a west southwest wind 14 to 19 mph increasing to 21 to 26 mph after midnight. Winds could gust as high as 47 mph. Little or no snow accumulation expected.

    Low: 30 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Thursday

    Thursday: Snow. Patchy blowing snow after 9am. High near 40. Windy, with a west southwest wind 28 to 38 mph, with gusts as high as 60 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 40 °F

    Snow and
    Patchy
    Blowing Snow

  • Thursday Night

    Thursday Night: Snow. Areas of blowing snow before midnight. Low around 24. Blustery, with a west wind 21 to 26 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 24 °F

    Snow and
    Areas Blowing
    Snow

  • Friday

    Friday: Snow. High near 30. West wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 6 inches possible.

    High: 30 °F

    Snow

  • Friday Night

    Friday Night: Snow. Cloudy, with a low around 17. North northwest wind around 11 mph becoming east after midnight. Winds could gust as high as 22 mph.

    Low: 17 °F

    Snow

  • Saturday

    Saturday: Snow. The snow could be heavy at times. Cloudy, with a high near 24.

    High: 24 °F

    Heavy Snow

Detailed Forecast

This Afternoon
A 20 percent chance of snow after 3pm. Increasing clouds, with a high near 29. West wind 9 to 13 mph, with gusts as high as 23 mph.
Tonight
A 20 percent chance of snow before 8pm. Partly cloudy, with a low around 17. West wind 10 to 14 mph, with gusts as high as 24 mph.
Wednesday
Increasing clouds, with a high near 34. Breezy, with a west wind 14 to 22 mph, with gusts as high as 40 mph.
Wednesday Night
A 40 percent chance of snow. Patchy blowing snow before 9pm. Cloudy, with a low around 30. Breezy, with a west southwest wind 14 to 19 mph increasing to 21 to 26 mph after midnight. Winds could gust as high as 47 mph. Little or no snow accumulation expected.
Thursday
Snow. Patchy blowing snow after 9am. High near 40. Windy, with a west southwest wind 28 to 38 mph, with gusts as high as 60 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
Snow. Areas of blowing snow before midnight. Low around 24. Blustery, with a west wind 21 to 26 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Friday
Snow. High near 30. West wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 6 inches possible.
Friday Night
Snow. Cloudy, with a low around 17. North northwest wind around 11 mph becoming east after midnight. Winds could gust as high as 22 mph.
Saturday
Snow. The snow could be heavy at times. Cloudy, with a high near 24.
Saturday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 7.
Sunday
A slight chance of snow. Partly sunny, with a high near 22.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 13.
Monday
A chance of snow. Mostly cloudy, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ENE Lewistown MT
 47.1°N 109.25°W (Elev. 5325 ft)
Last Update:
11:56 am MDT Mar 10, 2026
Forecast Valid:
12pm MDT Mar 10, 2026-6pm MDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation