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Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

25°F

-4°C

Humidity 68%
Wind Speed N 0 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 27 Jan 10:05 PM MST
Extended Forecast for

Lewistown MT

  • Tonight

    Tonight: Increasing clouds, with a low around 20. Southwest wind around 5 mph becoming south southeast after midnight.

    Low: 20 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 43. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 43 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 24. West wind around 8 mph.

    Low: 24 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 44. West wind around 7 mph.

    High: 44 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 26. West southwest wind around 6 mph.

    Low: 26 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 46. Southwest wind around 6 mph.

    High: 46 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 32. South southwest wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 32 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 48. West northwest wind around 11 mph, with gusts as high as 23 mph.

    High: 48 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 20. Southwest wind around 5 mph becoming south southeast after midnight.
Wednesday
Mostly cloudy, with a high near 43. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 24. West wind around 8 mph.
Thursday
Mostly sunny, with a high near 44. West wind around 7 mph.
Thursday Night
Mostly cloudy, with a low around 26. West southwest wind around 6 mph.
Friday
Partly sunny, with a high near 46. Southwest wind around 6 mph.
Friday Night
Mostly cloudy, with a low around 32. South southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Saturday
Partly sunny, with a high near 48. West northwest wind around 11 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Partly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 32.
Monday
Partly sunny, with a high near 53.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
Partly sunny, with a high near 44.
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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:
9:37 pm MST Jan 27, 2026
Forecast Valid:
10pm MST Jan 27, 2026-6pm MST Feb 3, 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