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

Storm Impacting the Southwest U.S.

A slow moving weather disturbance will continue to bring periodic rain showers, a few isolated thunderstorms, and a localized flash flooding across the Southwest. The threat will expand into the Southern Plains Wednesday night. Moderate to heavy snow across the Sierra Nevada and southern Utah Ranges will continue into the overnight period. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Mostly Cloudy

37°F

3°C

Humidity 78%
Wind Speed SW 9 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 18 Nov 11:54 PM MST
Extended Forecast for

2 Miles N Lewistown MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 27. West wind 3 to 5 mph.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 43. West northwest wind 5 to 8 mph becoming calm in the afternoon.

    High: 43 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 24. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 24 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 53. South southeast wind around 5 mph becoming calm in the morning.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. Southwest wind 3 to 6 mph.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 54. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 54 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30. West southwest wind 7 to 9 mph.

    Low: 30 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 53. West southwest wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 53 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 27. West wind 3 to 5 mph.
Wednesday
Partly sunny, with a high near 43. West northwest wind 5 to 8 mph becoming calm in the afternoon.
Wednesday Night
Mostly clear, with a low around 24. Calm wind becoming south southeast around 5 mph after midnight.
Thursday
Sunny, with a high near 53. South southeast wind around 5 mph becoming calm in the morning.
Thursday Night
Mostly clear, with a low around 28. Southwest wind 3 to 6 mph.
Friday
Sunny, with a high near 54. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 30. West southwest wind 7 to 9 mph.
Saturday
Mostly sunny, with a high near 53. West southwest wind 9 to 14 mph, with gusts as high as 23 mph.
Saturday Night
Mostly cloudy, with a low around 33.
Sunday
A slight chance of rain. Partly sunny, with a high near 54.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 32.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 49.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 19.
Tuesday
A chance of snow. Partly sunny, with a high near 31.
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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:
9:48 pm MST Nov 18, 2025
Forecast Valid:
12am MST Nov 19, 2025-6pm MST Nov 25, 2025
 
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Additional Resources

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