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)

Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

45°F

7°C

Humidity 45%
Wind Speed W 3 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 06 Feb 11:35 PM MST
Extended Forecast for

Lewistown Municipal MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. West southwest wind around 9 mph.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 60. West southwest wind 8 to 16 mph, with gusts as high as 25 mph.

    High: 60 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38. Southwest wind 11 to 13 mph, with gusts as high as 22 mph.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 57. West southwest wind 11 to 15 mph, with gusts as high as 26 mph.

    High: 57 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A chance of rain before 11pm, then rain likely, possibly mixed with snow. Cloudy, with a low around 34. West northwest wind 6 to 8 mph becoming east southeast after midnight. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain/Snow
    Likely

  • Monday

    Monday: Rain and snow likely, becoming all snow after 8am. Mostly cloudy, with a high near 42. Southeast wind 8 to 13 mph becoming northwest in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Monday Night

    Monday Night: A 30 percent chance of snow before 11pm. Mostly cloudy, with a low around 23. Northwest wind 8 to 13 mph becoming west southwest in the evening. Winds could gust as high as 21 mph. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Chance Snow
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 42. West wind around 7 mph.

    High: 42 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 20.

    Low: 20 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 39. West southwest wind around 9 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 60. West southwest wind 8 to 16 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 38. Southwest wind 11 to 13 mph, with gusts as high as 22 mph.
Sunday
Mostly cloudy, with a high near 57. West southwest wind 11 to 15 mph, with gusts as high as 26 mph.
Sunday Night
A chance of rain before 11pm, then rain likely, possibly mixed with snow. Cloudy, with a low around 34. West northwest wind 6 to 8 mph becoming east southeast after midnight. Chance of precipitation is 60%. Little or no snow accumulation expected.
Monday
Rain and snow likely, becoming all snow after 8am. Mostly cloudy, with a high near 42. Southeast wind 8 to 13 mph becoming northwest in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Monday Night
A 30 percent chance of snow before 11pm. Mostly cloudy, with a low around 23. Northwest wind 8 to 13 mph becoming west southwest in the evening. Winds could gust as high as 21 mph. New snow accumulation of less than a half inch possible.
Tuesday
Mostly sunny, with a high near 42. West wind around 7 mph.
Tuesday Night
Mostly clear, with a low around 20.
Wednesday
Sunny, with a high near 44.
Wednesday Night
Mostly clear, with a low around 23.
Thursday
Sunny, with a high near 45.
Thursday Night
Mostly cloudy, with a low around 25.
Friday
Mostly sunny, with a high near 47.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewistown Municipal MT
 47.04°N 109.45°W (Elev. 4111 ft)
Last Update:
10:03 pm MST Feb 6, 2026
Forecast Valid:
11pm MST Feb 6, 2026-6pm MST Feb 13, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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