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

PNS26-03: Soliciting Comments through February 9, 2026 on the Discontinuation of the State Forecast Product (SFP)

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Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

48°F

9°C

Humidity 31%
Wind Speed NW 12 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 02 Feb 03:35 PM MST
Extended Forecast for

Lewistown MT

  • Tonight

    Tonight: Increasing clouds, with a low around 31. West southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 31 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 47. Northwest wind 8 to 14 mph, with gusts as high as 25 mph.

    High: 47 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 29. Northwest wind around 6 mph becoming light and variable.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 64. South wind 6 to 13 mph becoming west in the afternoon. Winds could gust as high as 23 mph.

    High: 64 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 38. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 69. Southwest wind around 7 mph becoming west northwest in the afternoon.

    High: 69 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34. Northwest wind around 5 mph becoming light and variable.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 67. South wind around 5 mph becoming light and variable.

    High: 67 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 31. West southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 47. Northwest wind 8 to 14 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 29. Northwest wind around 6 mph becoming light and variable.
Wednesday
Mostly sunny, with a high near 64. South wind 6 to 13 mph becoming west in the afternoon. Winds could gust as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 38. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 69. Southwest wind around 7 mph becoming west northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 34. Northwest wind around 5 mph becoming light and variable.
Friday
Sunny, with a high near 67. South wind around 5 mph becoming light and variable.
Friday Night
Mostly clear, with a low around 36.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 61.
Sunday Night
Mostly cloudy, with a low around 34.
Monday
A slight chance of rain and snow. Partly sunny, with a high near 49.
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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:
2:12 pm MST Feb 2, 2026
Forecast Valid:
3pm MST Feb 2, 2026-6pm MST Feb 9, 2026
 
Forecast Discussion
 
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Additional Resources

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