Active Spring Like Pattern Across the Country

A frontal boundary will slowly move eastward and clear most of the eastern seaboard by Sunday. Showers and thunderstorms, some severe, will accompany this front alongside the threat of heavy rainfall; These threats may linger along the Gulf Coast states into early next week. Meanwhile, record spring-like warmth is forecast, mainly east of the Mississippi River, this weekend into next week. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

Lat: 47.04917°NLon: 109.46639°WElev: 4167.0ft.

Clear

51°F

11°C

Humidity 49%
Wind Speed WSW 9 MPH
Barometer 29.79 in (1008.81 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 07 Mar 05:54 PM MST
Extended Forecast for

Lewistown MT

High Wind Warning March 8, 03:00am until March 9, 12:00am
Click here for hazard details and duration
High Wind Warning
  • Tonight

    Tonight: Partly cloudy, with a low around 39. West wind 16 to 20 mph, with gusts as high as 32 mph.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Patchy blowing dust between 1pm and 4pm. Partly sunny, with a high near 59. Windy, with a west southwest wind 18 to 23 mph increasing to 27 to 32 mph in the afternoon. Winds could gust as high as 47 mph.

    High: 59 °F

    Partly Sunny
    and Breezy
    then Patchy
    Blowing Dust
    and Windy

  • Sunday Night

    Sunday Night: A chance of rain before 11pm, then rain and snow likely between 11pm and 2am, then snow likely after 2am.  Mostly cloudy, with a low around 29. Breezy, with a west wind 20 to 25 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 43 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Rain/Snow
    Likely and
    Breezy

  • Monday

    Monday: A 50 percent chance of snow.  Mostly cloudy, with a high near 41. Southwest wind 7 to 12 mph becoming west northwest 13 to 18 mph in the afternoon. Winds could gust as high as 31 mph.  New snow accumulation of less than one inch possible.

    High: 41 °F

    Chance Snow

  • Monday Night

    Monday Night: A 30 percent chance of snow, mainly before 11pm.  Mostly cloudy, with a low around 20. West wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 30 mph.  Little or no snow accumulation expected.

    Low: 20 °F

    Chance Snow

  • Tuesday

    Tuesday: A 30 percent chance of snow after 11am.  Partly sunny, with a high near 36. West wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 28 mph.  Little or no snow accumulation expected.

    High: 36 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow before 11pm.  Partly cloudy, with a low around 18. West southwest wind 15 to 20 mph decreasing to 8 to 13 mph in the evening. Winds could gust as high as 28 mph.

    Low: 18 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 42. Breezy, with a west wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 42 °F

    Partly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Wednesday Night

    Wednesday Night: A chance of snow, mainly after 11pm.  Mostly cloudy, with a low around 31.

    Low: 31 °F

    Chance Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 39. West wind 16 to 20 mph, with gusts as high as 32 mph.
Sunday
Patchy blowing dust between 1pm and 4pm. Partly sunny, with a high near 59. Windy, with a west southwest wind 18 to 23 mph increasing to 27 to 32 mph in the afternoon. Winds could gust as high as 47 mph.
Sunday Night
A chance of rain before 11pm, then rain and snow likely between 11pm and 2am, then snow likely after 2am. Mostly cloudy, with a low around 29. Breezy, with a west wind 20 to 25 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday
A 50 percent chance of snow. Mostly cloudy, with a high near 41. Southwest wind 7 to 12 mph becoming west northwest 13 to 18 mph in the afternoon. Winds could gust as high as 31 mph. New snow accumulation of less than one inch possible.
Monday Night
A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 20. West wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 30 mph. Little or no snow accumulation expected.
Tuesday
A 30 percent chance of snow after 11am. Partly sunny, with a high near 36. West wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 28 mph. Little or no snow accumulation expected.
Tuesday Night
A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 18. West southwest wind 15 to 20 mph decreasing to 8 to 13 mph in the evening. Winds could gust as high as 28 mph.
Wednesday
Partly sunny, with a high near 42. Breezy, with a west wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 34 mph.
Wednesday Night
A chance of snow, mainly after 11pm. Mostly cloudy, with a low around 31.
Thursday
A chance of rain and snow before 11am, then rain likely. Cloudy, with a high near 51. Windy.
Thursday Night
Rain and snow likely. Mostly cloudy, with a low around 21. Windy.
Friday
Snow likely. Mostly cloudy, with a high near 36.
Friday Night
A chance of snow. Mostly cloudy, with a low around 20.
Saturday
Snow likely. Cloudy, with a high near 37.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown MT
 47.07°N 109.43°W (Elev. 3898 ft)
4:03 pm MST Mar 7, 2026
6pm MST Mar 7, 2026-6pm MDT Mar 14, 2026
 
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Additional Resources

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Hourly Weather Forecast

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