National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

25°F

-4°C

Humidity 62%
Wind Speed WSW 11 MPH
Barometer 30.33 in (1027.09 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 29 Dec 07:35 AM MST
Extended Forecast for

6 Miles N Lewistown MT

  • Today

    Today: Sunny, with a high near 39. South southwest wind around 6 mph.

    High: 39 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 25. Southwest wind around 6 mph.

    Low: 25 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 45. Southwest wind around 6 mph.

    High: 45 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 29. West southwest wind around 7 mph.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 49. West southwest wind around 6 mph becoming calm in the morning.

    High: 49 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 29. Light southwest wind.

    Low: 29 °F

    Mostly Clear

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 48. Calm wind.

    High: 48 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 32. Southwest wind 3 to 5 mph.

    Low: 32 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 49.

    High: 49 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 39. South southwest wind around 6 mph.
Tonight
Increasing clouds, with a low around 25. Southwest wind around 6 mph.
Tuesday
Mostly sunny, with a high near 45. Southwest wind around 6 mph.
Tuesday Night
Partly cloudy, with a low around 29. West southwest wind around 7 mph.
Wednesday
Sunny, with a high near 49. West southwest wind around 6 mph becoming calm in the morning.
Wednesday Night
Mostly clear, with a low around 29. Light southwest wind.
New Year's Day
Mostly sunny, with a high near 48. Calm wind.
Thursday Night
Mostly cloudy, with a low around 32. Southwest wind 3 to 5 mph.
Friday
Mostly cloudy, with a high near 49.
Friday Night
Mostly cloudy, with a low around 30.
Saturday
Partly sunny, with a high near 46.
Saturday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 27.
Sunday
Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles N Lewistown MT
 47.15°N 109.44°W (Elev. 4094 ft)
Last Update:
4:36 am MST Dec 29, 2025
Forecast Valid:
7am MST Dec 29, 2025-6pm MST Jan 4, 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