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.

Partly Cloudy

36°F

2°C

Humidity 34%
Wind Speed WNW 18 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 09 Jan 12:05 PM MST
Extended Forecast for

Lewistown Municipal MT

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 37. West wind around 18 mph, with gusts as high as 30 mph.

    High: 37 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 25. West wind 11 to 15 mph, with gusts as high as 26 mph.

    Low: 25 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 48. West wind 9 to 14 mph, with gusts as high as 25 mph.

    High: 48 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 32. West southwest wind 11 to 13 mph, with gusts as high as 22 mph.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 53. West southwest wind 14 to 16 mph, with gusts as high as 28 mph.

    High: 53 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38. West southwest wind around 14 mph, with gusts as high as 25 mph.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 56. Breezy, with a west wind 15 to 20 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 38 mph.

    High: 56 °F

    Partly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 39. Breezy, with a west wind 18 to 23 mph, with gusts as high as 36 mph.

    Low: 39 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Partly sunny, with a high near 37. West wind around 18 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy, with a low around 25. West wind 11 to 15 mph, with gusts as high as 26 mph.
Saturday
Mostly sunny, with a high near 48. West wind 9 to 14 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 32. West southwest wind 11 to 13 mph, with gusts as high as 22 mph.
Sunday
Mostly sunny, with a high near 53. West southwest wind 14 to 16 mph, with gusts as high as 28 mph.
Sunday Night
Mostly cloudy, with a low around 38. West southwest wind around 14 mph, with gusts as high as 25 mph.
Monday
Partly sunny, with a high near 56. Breezy, with a west wind 15 to 20 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 38 mph.
Monday Night
Mostly cloudy, with a low around 39. Breezy, with a west wind 18 to 23 mph, with gusts as high as 36 mph.
Tuesday
Mostly cloudy, with a high near 55.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Mostly sunny, with a high near 58.
Wednesday Night
A slight chance of rain. Partly cloudy, with a low around 32.
Thursday
A slight chance of rain and snow. Mostly sunny, with a high near 46.
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:
9:27 am MST Jan 9, 2026
Forecast Valid:
12pm MST Jan 9, 2026-6pm MST Jan 15, 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