Lake Effect Snow in the Lower Great Lakes; Rain and High Elevation Snow in the West

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest Thursday afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

19°F

-7°C

Humidity 73%
Wind Speed SE 5 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 11 Feb 08:00 PM MST
Extended Forecast for

Lewistown Municipal MT

  • Tonight

    Tonight: Mostly clear, with a low around 21. South southwest wind 6 to 9 mph.

    Low: 21 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 48. South southwest wind 5 to 7 mph.

    High: 48 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25. South southwest wind 6 to 8 mph.

    Low: 25 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 47. West wind 6 to 8 mph.

    High: 47 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 27. South southwest wind 3 to 6 mph.

    Low: 27 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 47. West wind 7 to 9 mph, with gusts as high as 18 mph.

    High: 47 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A slight chance of rain and snow between 11pm and 2am, then a slight chance of snow after 2am.  Mostly cloudy, with a low around 28. South southwest wind 6 to 8 mph.  Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of snow, mainly before 11am.  Mostly cloudy, with a high near 45. South southwest wind around 6 mph.

    High: 45 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A slight chance of snow, mixing with rain after 8pm, then gradually ending.  Mostly cloudy, with a low around 27.

    Low: 27 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 21. South southwest wind 6 to 9 mph.
Thursday
Sunny, with a high near 48. South southwest wind 5 to 7 mph.
Thursday Night
Partly cloudy, with a low around 25. South southwest wind 6 to 8 mph.
Friday
Mostly sunny, with a high near 47. West wind 6 to 8 mph.
Friday Night
Mostly cloudy, with a low around 27. South southwest wind 3 to 6 mph.
Saturday
Mostly cloudy, with a high near 47. West wind 7 to 9 mph, with gusts as high as 18 mph.
Saturday Night
A slight chance of rain and snow between 11pm and 2am, then a slight chance of snow after 2am. Mostly cloudy, with a low around 28. South southwest wind 6 to 8 mph. Chance of precipitation is 20%.
Sunday
A chance of snow, mainly before 11am. Mostly cloudy, with a high near 45. South southwest wind around 6 mph.
Sunday Night
A slight chance of snow, mixing with rain after 8pm, then gradually ending. Mostly cloudy, with a low around 27.
Washington's Birthday
A slight chance of snow before 11am, then a slight chance of rain. Partly sunny, with a high near 50.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 25.
Tuesday
A chance of snow. Mostly cloudy, with a high near 37.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 19.
Wednesday
A chance of snow. Mostly cloudy, with a high near 37.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown Municipal MT
 47.04°N 109.45°W (Elev. 4111 ft)
5:43 pm MST Feb 11, 2026
8pm MST Feb 11, 2026-6pm MST Feb 18, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database