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

47°F

8°C

Humidity 36%
Wind Speed NW 12 MPH
Barometer 30.39 in (1029.12 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 03 Feb 02:54 PM MST
Extended Forecast for

Lewistown MT

  • Tonight

    Tonight: Partly cloudy, with a low around 28. Light and variable wind becoming south southeast around 6 mph in the evening.

    Low: 28 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 62. South wind 7 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 62 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 40. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 68. South southwest wind 6 to 8 mph becoming west northwest in the afternoon.

    High: 68 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 33. Northwest wind around 5 mph becoming calm in the evening.

    Low: 33 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 65. South wind around 5 mph becoming light and variable.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 37. West southwest wind around 6 mph.

    Low: 37 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 60. West wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 60 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 28. Light and variable wind becoming south southeast around 6 mph in the evening.
Wednesday
Mostly sunny, with a high near 62. South wind 7 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 40. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 68. South southwest wind 6 to 8 mph becoming west northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 33. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 65. South wind around 5 mph becoming light and variable.
Friday Night
Partly cloudy, with a low around 37. West southwest wind around 6 mph.
Saturday
Mostly sunny, with a high near 60. West wind 7 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Partly sunny, with a high near 59.
Sunday Night
Mostly cloudy, with a low around 31.
Monday
A slight chance of rain and snow. Mostly cloudy, with a high near 46.
Monday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 24.
Tuesday
A slight chance of snow. Partly sunny, with a high near 39.
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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:
1:17 pm MST Feb 3, 2026
Forecast Valid:
3pm MST Feb 3, 2026-6pm MST Feb 10, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation