Fire Weather Concerns in the South-Central U.S.; Heavy Precipitation in Northern California and the Great Lakes

Strong winds and dry conditions will promote elevated to critical fire weather conditions across southeast Colorado into the southern Plains and extending into the Ozarks. An atmospheric river will bring heavy rain and a flash flood threat to northern California and heavy mountain snow in the Cascades and Northern Rockies. A clipper system will bring heavy snow to the Great Lakes. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Mostly Cloudy

36°F

2°C

Humidity 69%
Wind Speed W 6 MPH
Barometer 29.7 in (1005.76 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 24 Feb 08:20 AM MST
Extended Forecast for

Lewistown Municipal MT

  • Today

    Today: Mostly cloudy, with a high near 40. West wind 6 to 11 mph, with gusts as high as 22 mph.

    High: 40 °F

    Mostly Cloudy

  • Tonight

    Tonight: A chance of snow before 10pm, then a chance of rain and snow between 10pm and 4am, then a chance of snow after 4am.  Mostly cloudy, with a steady temperature around 33. South southeast wind 6 to 13 mph becoming west after midnight. Winds could gust as high as 23 mph.  Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A 30 percent chance of snow before 11am.  Mostly cloudy, then gradually becoming sunny, with a high near 44. Breezy, with a west northwest wind 15 to 20 mph increasing to 23 to 28 mph in the morning. Winds could gust as high as 40 mph.  New snow accumulation of less than a half inch possible.

    High: 44 °F

    Breezy.
    Chance Snow
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 28. Breezy, with a west wind 17 to 23 mph, with gusts as high as 34 mph.

    Low: 28 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 48. Breezy, with a west wind 18 to 28 mph, with gusts as high as 39 mph.

    High: 48 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 30. Breezy, with a west wind around 23 mph, with gusts as high as 39 mph.

    Low: 30 °F

    Partly Cloudy
    and Breezy

  • Friday

    Friday: A 40 percent chance of snow, mainly after 11am.  Partly sunny, with a high near 44. Northwest wind 16 to 20 mph, with gusts as high as 33 mph.  New snow accumulation of less than a half inch possible.

    High: 44 °F

    Chance Snow

  • Friday Night

    Friday Night: Snow likely.  Mostly cloudy, with a low around 14. North northwest wind 8 to 16 mph becoming east northeast in the evening. Winds could gust as high as 24 mph.

    Low: 14 °F

    Snow Likely

  • Saturday

    Saturday: A chance of snow, mainly before 11am.  Mostly cloudy, with a high near 30.

    High: 30 °F

    Chance Snow

Detailed Forecast

Today
Mostly cloudy, with a high near 40. West wind 6 to 11 mph, with gusts as high as 22 mph.
Tonight
A chance of snow before 10pm, then a chance of rain and snow between 10pm and 4am, then a chance of snow after 4am. Mostly cloudy, with a steady temperature around 33. South southeast wind 6 to 13 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Wednesday
A 30 percent chance of snow before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 44. Breezy, with a west northwest wind 15 to 20 mph increasing to 23 to 28 mph in the morning. Winds could gust as high as 40 mph. New snow accumulation of less than a half inch possible.
Wednesday Night
Mostly clear, with a low around 28. Breezy, with a west wind 17 to 23 mph, with gusts as high as 34 mph.
Thursday
Mostly sunny, with a high near 48. Breezy, with a west wind 18 to 28 mph, with gusts as high as 39 mph.
Thursday Night
Partly cloudy, with a low around 30. Breezy, with a west wind around 23 mph, with gusts as high as 39 mph.
Friday
A 40 percent chance of snow, mainly after 11am. Partly sunny, with a high near 44. Northwest wind 16 to 20 mph, with gusts as high as 33 mph. New snow accumulation of less than a half inch possible.
Friday Night
Snow likely. Mostly cloudy, with a low around 14. North northwest wind 8 to 16 mph becoming east northeast in the evening. Winds could gust as high as 24 mph.
Saturday
A chance of snow, mainly before 11am. Mostly cloudy, with a high near 30.
Saturday Night
Mostly cloudy, with a low around 14.
Sunday
Mostly sunny, with a high near 42.
Sunday Night
Partly cloudy, with a low around 22.
Monday
Sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown Municipal MT
 47.04°N 109.45°W (Elev. 4111 ft)
3:06 am MST Feb 24, 2026
8am MST Feb 24, 2026-6pm MST Mar 2, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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