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PNS25-72: Soliciting Comments through December 19, 2025 on the Discontinuation of the Max/Min Temperature and Precipitation Table Product (RTP) for all NWS Alaska Region, Eastern Region, and Western Region Offices.

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Hazardous Weather Conditions

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

34°F

1°C

Humidity 69%
Wind Speed SW 12 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 07 Dec 06:35 PM MST
Extended Forecast for

Lewistown MT

High Wind Watch December 8, 06:00pm until December 9, 10:00am
Click here for hazard details and duration
High Wind Watch

  • Tonight

    Tonight: A chance of rain and snow between 8pm and 9pm. Mostly cloudy, then gradually becoming mostly clear, with a steady temperature around 32. West wind 11 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 32 °F

    Chance
    Rain/Snow
    then Partly
    Cloudy

  • Monday

    Monday: Increasing clouds, with a high near 44. West wind around 17 mph, with gusts as high as 31 mph.

    High: 44 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: A 20 percent chance of rain before 11pm. Cloudy, with a temperature falling to near 35 by 9pm, then rising to around 44 during the remainder of the night. West southwest wind 16 to 21 mph, with gusts as high as 36 mph.

    Low: 35 °F⇑

    Slight Chance
    Rain then
    Cloudy

  • Tuesday

    Tuesday: A chance of rain before 11am, then a chance of rain and snow between 11am and 2pm, then a chance of snow after 2pm. Mostly cloudy, with a high near 48. Breezy, with a west northwest wind 18 to 26 mph, with gusts as high as 45 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 48 °F

    Chance
    Rain/Snow and
    Breezy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow after 11pm. Mostly cloudy, with a low around 25. West wind 8 to 14 mph becoming south southwest after midnight. Winds could gust as high as 24 mph. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Snow

  • Wednesday

    Wednesday: Snow before 8am, then rain and snow. High near 44. South wind 8 to 15 mph becoming west in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 44 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before 11pm. Mostly cloudy, with a low around 6. West northwest wind 9 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Low: 6 °F

    Snow Likely

  • Thursday

    Thursday: A chance of snow. Mostly cloudy, with a high near 20. Northwest wind around 7 mph.

    High: 20 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around -1.

    Low: -1 °F

    Chance Snow

Detailed Forecast

Tonight
A chance of rain and snow between 8pm and 9pm. Mostly cloudy, then gradually becoming mostly clear, with a steady temperature around 32. West wind 11 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Monday
Increasing clouds, with a high near 44. West wind around 17 mph, with gusts as high as 31 mph.
Monday Night
A 20 percent chance of rain before 11pm. Cloudy, with a temperature falling to near 35 by 9pm, then rising to around 44 during the remainder of the night. West southwest wind 16 to 21 mph, with gusts as high as 36 mph.
Tuesday
A chance of rain before 11am, then a chance of rain and snow between 11am and 2pm, then a chance of snow after 2pm. Mostly cloudy, with a high near 48. Breezy, with a west northwest wind 18 to 26 mph, with gusts as high as 45 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tuesday Night
A 40 percent chance of snow after 11pm. Mostly cloudy, with a low around 25. West wind 8 to 14 mph becoming south southwest after midnight. Winds could gust as high as 24 mph. New snow accumulation of less than a half inch possible.
Wednesday
Snow before 8am, then rain and snow. High near 44. South wind 8 to 15 mph becoming west in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday Night
Snow likely, mainly before 11pm. Mostly cloudy, with a low around 6. West northwest wind 9 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Thursday
A chance of snow. Mostly cloudy, with a high near 20. Northwest wind around 7 mph.
Thursday Night
A chance of snow. Mostly cloudy, with a low around -1.
Friday
A chance of snow. Mostly cloudy, with a high near 22.
Friday Night
A chance of snow. Mostly cloudy, with a low around 9.
Saturday
A slight chance of snow. Mostly cloudy, with a high near 40.
Saturday Night
Mostly cloudy, with a low around 20.
Sunday
Partly sunny, with a high near 40.
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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:
3:47 pm MST Dec 7, 2025
Forecast Valid:
7pm MST Dec 7, 2025-6pm MST Dec 14, 2025
 
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