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

34°F

1°C

Humidity 74%
Wind Speed SW 6 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 01 Feb 12:20 AM MST
Extended Forecast for

Lewistown MT

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 36. Light south southwest wind.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 57. Light and variable wind becoming south southwest around 6 mph in the afternoon.

    High: 57 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of snow after 3am. Partly cloudy, with a low around 33. West southwest wind 8 to 16 mph, with gusts as high as 29 mph.

    Low: 33 °F

    Partly Cloudy
    then Slight
    Chance Snow

  • Monday

    Monday: Mostly sunny, with a high near 48. West northwest wind 17 to 20 mph, with gusts as high as 31 mph.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 49. West wind 9 to 11 mph, with gusts as high as 22 mph.

    High: 49 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 29. West northwest wind around 6 mph becoming south southwest after midnight.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 62. South wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 22 mph.

    High: 62 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 36. Light south southwest wind.
Sunday
Partly sunny, with a high near 57. Light and variable wind becoming south southwest around 6 mph in the afternoon.
Sunday Night
A 20 percent chance of snow after 3am. Partly cloudy, with a low around 33. West southwest wind 8 to 16 mph, with gusts as high as 29 mph.
Monday
Mostly sunny, with a high near 48. West northwest wind 17 to 20 mph, with gusts as high as 31 mph.
Monday Night
Mostly cloudy, with a low around 29. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Tuesday
Partly sunny, with a high near 49. West wind 9 to 11 mph, with gusts as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 29. West northwest wind around 6 mph becoming south southwest after midnight.
Wednesday
Partly sunny, with a high near 62. South wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
Mostly cloudy, with a low around 38.
Thursday
Sunny, with a high near 63.
Thursday Night
Mostly clear, with a low around 32.
Friday
Mostly sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 30.
Saturday
Mostly sunny, with a high near 52.
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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:
11:42 pm MST Jan 31, 2026
Forecast Valid:
12am MST Feb 1, 2026-6pm MST Feb 7, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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