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.

Overcast

25°F

-4°C

Humidity 53%
Wind Speed WNW 16 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 09 Jan 01:35 AM MST
Extended Forecast for

Lewistown MT

  • Overnight

    Overnight: A 20 percent chance of snow before 2am. Mostly cloudy, with a low around 18. West wind around 16 mph, with gusts as high as 25 mph.

    Low: 18 °F

    Slight Chance
    Snow

  • Friday

    Friday: Partly sunny, with a high near 37. West wind 10 to 18 mph, with gusts as high as 29 mph.

    High: 37 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 26. West wind 11 to 15 mph, with gusts as high as 26 mph.

    Low: 26 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 48. West wind 10 to 13 mph, with gusts as high as 23 mph.

    High: 48 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 32. West southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 54. West southwest wind 10 to 16 mph, with gusts as high as 28 mph.

    High: 54 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 36. West southwest wind 11 to 14 mph, with gusts as high as 23 mph.

    Low: 36 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 56. Breezy, with a west wind 13 to 22 mph, with gusts as high as 33 mph.

    High: 56 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Monday Night

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

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of snow before 2am. Mostly cloudy, with a low around 18. West wind around 16 mph, with gusts as high as 25 mph.
Friday
Partly sunny, with a high near 37. West wind 10 to 18 mph, with gusts as high as 29 mph.
Friday Night
Mostly cloudy, with a low around 26. West wind 11 to 15 mph, with gusts as high as 26 mph.
Saturday
Mostly sunny, with a high near 48. West wind 10 to 13 mph, with gusts as high as 23 mph.
Saturday Night
Mostly cloudy, with a low around 32. West southwest wind around 10 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 54. West southwest wind 10 to 16 mph, with gusts as high as 28 mph.
Sunday Night
Mostly cloudy, with a low around 36. West southwest wind 11 to 14 mph, with gusts as high as 23 mph.
Monday
Partly sunny, with a high near 56. Breezy, with a west wind 13 to 22 mph, with gusts as high as 33 mph.
Monday Night
Mostly cloudy, with a low around 38.
Tuesday
Mostly cloudy, with a high near 54.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
Mostly sunny, with a high near 57.
Wednesday Night
Mostly clear, with a low around 33.
Thursday
A slight chance of rain and snow. Mostly sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewistown MT
 47.05°N 109.42°W (Elev. 4075 ft)
Last Update:
10:22 pm MST Jan 8, 2026
Forecast Valid:
1am MST Jan 9, 2026-6pm MST Jan 15, 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