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

Lewistown, Lewistown Municipal Airport (KLWT)

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

Mostly Cloudy

N/A

Humidity 36%
Wind Speed WNW 16 MPH
Barometer NA
Dewpoint N/A
Visibility 10.00 mi
Last update 07 May 12:54 PM MDT
Extended Forecast for

2 Miles N Lewistown MT

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 52. East southeast wind 5 to 8 mph.

    Low: 52 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 88. Light southeast wind becoming east southeast 8 to 13 mph in the morning. Winds could gust as high as 24 mph.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 52. East southeast wind 5 to 10 mph becoming light south southeast after midnight. Winds could gust as high as 21 mph.

    Low: 52 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 84. Calm wind becoming east southeast 5 to 7 mph in the afternoon.

    High: 84 °F

    Partly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 52. East southeast wind around 6 mph becoming calm after midnight. Chance of precipitation is 20%.

    Low: 52 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 87. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 87 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54. Southeast wind 3 to 8 mph.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 84 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight, then a chance of rain after midnight. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 52. East southeast wind 5 to 8 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 88. Light southeast wind becoming east southeast 8 to 13 mph in the morning. Winds could gust as high as 24 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 52. East southeast wind 5 to 10 mph becoming light south southeast after midnight. Winds could gust as high as 21 mph.
Wednesday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 84. Calm wind becoming east southeast 5 to 7 mph in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 52. East southeast wind around 6 mph becoming calm after midnight. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 87. Calm wind becoming east southeast around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 54. Southeast wind 3 to 8 mph.
Friday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms before midnight, then a chance of rain after midnight. Mostly cloudy, with a low around 50.
Saturday
A chance of rain, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 71.
Saturday Night
A chance of rain and thunderstorms. Mostly cloudy, with a low around 45.
Sunday
A chance of rain and thunderstorms. Partly sunny, with a high near 73.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 45.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Lewistown MT
 47.09°N 109.43°W (Elev. 3901 ft)
Last Update:
4:27 pm MDT May 25, 2026
Forecast Valid:
7pm MDT May 25, 2026-6pm MDT Jun 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation