National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

32°F

0°C

Humidity 80%
Wind Speed SE 4 MPH
Barometer 30.32 in (1026.75 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 05 Apr 02:15 AM MDT
Extended Forecast for

Lewistown MT

High Wind Watch April 7, 03:00pm until April 8, 06:00am
Click here for hazard details and duration
High Wind Watch

  • Tonight

    Tonight: Mostly cloudy, with a low around 28. East wind 10 to 17 mph, with gusts as high as 24 mph.

    Low: 28 °F

    Mostly Cloudy

  • Monday

    Monday: Cloudy, then gradually becoming mostly sunny, with a high near 49. East southeast wind 11 to 18 mph, with gusts as high as 26 mph.

    High: 49 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34. East southeast wind 9 to 17 mph becoming south southwest after midnight. Winds could gust as high as 25 mph.

    Low: 34 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain after noon. Mostly sunny, with a high near 65. Breezy, with a south southwest wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 65 °F

    Mostly Sunny
    then Chance
    Rain and
    Breezy

  • Tuesday Night

    Tuesday Night: A chance of rain before 9pm, then a chance of rain and snow between 9pm and midnight, then a slight chance of snow after midnight. Mostly cloudy, with a low around 25. Blustery, with a west northwest wind 17 to 23 mph, with gusts as high as 39 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance
    Rain/Snow and
    Blustery then
    Slight Chance
    Snow

  • Wednesday

    Wednesday: A 20 percent chance of snow before noon. Partly sunny, with a high near 43. West northwest wind 17 to 20 mph, with gusts as high as 31 mph.

    High: 43 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 22. North northwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 24 mph.

    Low: 22 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of rain and snow between noon and 3pm, then a slight chance of rain after 3pm. Mostly sunny, with a high near 51. South wind 5 to 7 mph becoming northwest in the afternoon.

    High: 51 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 28. East wind 10 to 17 mph, with gusts as high as 24 mph.
Monday
Cloudy, then gradually becoming mostly sunny, with a high near 49. East southeast wind 11 to 18 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 34. East southeast wind 9 to 17 mph becoming south southwest after midnight. Winds could gust as high as 25 mph.
Tuesday
A 30 percent chance of rain after noon. Mostly sunny, with a high near 65. Breezy, with a south southwest wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.
Tuesday Night
A chance of rain before 9pm, then a chance of rain and snow between 9pm and midnight, then a slight chance of snow after midnight. Mostly cloudy, with a low around 25. Blustery, with a west northwest wind 17 to 23 mph, with gusts as high as 39 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Wednesday
A 20 percent chance of snow before noon. Partly sunny, with a high near 43. West northwest wind 17 to 20 mph, with gusts as high as 31 mph.
Wednesday Night
Partly cloudy, with a low around 22. North northwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 24 mph.
Thursday
A slight chance of rain and snow between noon and 3pm, then a slight chance of rain after 3pm. Mostly sunny, with a high near 51. South wind 5 to 7 mph becoming northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 27.
Friday
Sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 36.
Saturday
A chance of rain. Mostly sunny, with a high near 65.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 34.
Sunday
Rain and snow likely. Partly sunny, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewistown MT
 47.07°N 109.43°W (Elev. 3898 ft)
Last Update:
4:22 pm MDT Apr 5, 2026
Forecast Valid:
4pm MDT Apr 5, 2026-6pm MDT Apr 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation