Heavy Rain in the Southern U.S.; Active Weather Continues in Alaska

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains today, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. Another Bering system will impact the Alaskan West Coast and Central Interior through the weekend bringing moderate to heavy snow, high winds, and/or some blizzard conditions. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

36°F

2°C

Humidity 55%
Wind Speed SW 17 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 14 Feb 06:35 AM MST
Extended Forecast for

Lewistown Municipal MT

  • Today

    Today: Partly sunny, with a high near 48. West southwest wind 9 to 11 mph, with gusts as high as 22 mph.

    High: 48 °F

    Partly Sunny

  • Tonight

    Tonight: A 20 percent chance of rain after 1am.  Mostly cloudy, with a low around 30. Southwest wind around 7 mph.

    Low: 30 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: A slight chance of rain before 8am, then a chance of rain and snow.  Mostly cloudy, with a high near 48. Southwest wind around 6 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 48 °F

    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: A slight chance of rain and snow before 11pm.  Mostly cloudy, with a low around 27. South southwest wind around 6 mph.  Chance of precipitation is 20%.

    Low: 27 °F

    Slight Chance
    Rain/Snow
    then Partly
    Cloudy

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 52. South wind around 7 mph.

    High: 52 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of rain before 11pm, then rain likely after 5am.  Mostly cloudy, with a low around 27. Southeast wind 6 to 8 mph.  Chance of precipitation is 60%.

    Low: 27 °F

    Slight Chance
    Rain then
    Rain Likely

  • Tuesday

    Tuesday: Rain and snow likely before 8am, then snow between 8am and 5pm, then snow, possibly mixed with rain after 5pm.  High near 41. East southeast wind 6 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph.  Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 41 °F

    Rain/Snow

  • Tuesday Night

    Tuesday Night: A chance of rain and snow before 8pm, then a chance of snow.  Mostly cloudy, with a low around 12. West northwest wind 7 to 14 mph, with gusts as high as 22 mph.

    Low: 12 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: A chance of snow.  Mostly cloudy, with a high near 28.

    High: 28 °F

    Chance Snow

Detailed Forecast

Today
Partly sunny, with a high near 48. West southwest wind 9 to 11 mph, with gusts as high as 22 mph.
Tonight
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 30. Southwest wind around 7 mph.
Sunday
A slight chance of rain before 8am, then a chance of rain and snow. Mostly cloudy, with a high near 48. Southwest wind around 6 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Sunday Night
A slight chance of rain and snow before 11pm. Mostly cloudy, with a low around 27. South southwest wind around 6 mph. Chance of precipitation is 20%.
Washington's Birthday
Mostly sunny, with a high near 52. South wind around 7 mph.
Monday Night
A slight chance of rain before 11pm, then rain likely after 5am. Mostly cloudy, with a low around 27. Southeast wind 6 to 8 mph. Chance of precipitation is 60%.
Tuesday
Rain and snow likely before 8am, then snow between 8am and 5pm, then snow, possibly mixed with rain after 5pm. High near 41. East southeast wind 6 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Tuesday Night
A chance of rain and snow before 8pm, then a chance of snow. Mostly cloudy, with a low around 12. West northwest wind 7 to 14 mph, with gusts as high as 22 mph.
Wednesday
A chance of snow. Mostly cloudy, with a high near 28.
Wednesday Night
A chance of snow, mainly before 11pm. Mostly cloudy, with a low around 12.
Thursday
A chance of snow. Partly sunny, with a high near 32.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 13.
Friday
A slight chance of snow. Mostly cloudy, with a high near 31.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown Municipal MT
 47.04°N 109.45°W (Elev. 4111 ft)
4:18 am MST Feb 14, 2026
6am MST Feb 14, 2026-6pm MST Feb 20, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database