Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

heavy snow,freezing fog

18°F

-8°C

Humidity 85%
Wind Speed WNW 26 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 14°F (-10°C)
Visibility 0.24 mi
Wind Chill-0°F (-18°C)
Last update 14 Mar 06:00 PM MDT
Extended Forecast for

Lewistown Municipal MT

Blizzard Warning until March 15, 12:00am
Click here for hazard details and duration
Blizzard Warning
  •  
    Blizzard Warning until March 15, 12:00am

    NOW until 12:00am Sun

    Blizzard Warning

  • Tonight

    Low: 2 °F

    Snow then
    Chance Snow

  • Sunday

    Sunday: Cloudy through mid morning, then gradual clearing, with a high near 24. Wind chill values as low as -5. West northwest wind 3 to 6 mph.

    High: 24 °F

    Gradual
    Clearing

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 10. West northwest wind 5 to 9 mph becoming south in the evening.

    Low: 10 °F

    Increasing
    Clouds

  • Monday

    Monday: A slight chance of snow before noon, then a chance of rain and snow between noon and 3pm, then a chance of rain after 3pm.  Mostly cloudy, with a high near 46. South southwest wind 8 to 11 mph, with gusts as high as 23 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 46 °F

    Slight Chance
    Snow then
    Chance
    Rain/Snow

  • Monday Night

    Monday Night: A 30 percent chance of rain.  Mostly cloudy, with a low around 38. West wind 14 to 21 mph, with gusts as high as 34 mph.

    Low: 38 °F

    Chance Rain

  • Tuesday

    Tuesday: A 20 percent chance of rain.  Partly sunny, with a high near 56. Breezy, with a west wind 22 to 26 mph, with gusts as high as 39 mph.

    High: 56 °F

    Slight Chance
    Rain and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42. Breezy, with a west wind 17 to 22 mph, with gusts as high as 34 mph.

    Low: 42 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 64. West southwest wind 16 to 20 mph, with gusts as high as 31 mph.

    High: 64 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Snow, mainly before 11pm. Low around 2. Wind chill values as low as -5. Northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 3 inches possible.
Sunday
Cloudy through mid morning, then gradual clearing, with a high near 24. Wind chill values as low as -5. West northwest wind 3 to 6 mph.
Sunday Night
Increasing clouds, with a low around 10. West northwest wind 5 to 9 mph becoming south in the evening.
Monday
A slight chance of snow before noon, then a chance of rain and snow between noon and 3pm, then a chance of rain after 3pm. Mostly cloudy, with a high near 46. South southwest wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Monday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 38. West wind 14 to 21 mph, with gusts as high as 34 mph.
Tuesday
A 20 percent chance of rain. Partly sunny, with a high near 56. Breezy, with a west wind 22 to 26 mph, with gusts as high as 39 mph.
Tuesday Night
Mostly cloudy, with a low around 42. Breezy, with a west wind 17 to 22 mph, with gusts as high as 34 mph.
Wednesday
Mostly cloudy, with a high near 64. West southwest wind 16 to 20 mph, with gusts as high as 31 mph.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
Mostly cloudy, with a high near 65.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Partly sunny, with a high near 68.
Friday Night
Mostly cloudy, with a low around 45.
Saturday
Mostly cloudy, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown Municipal MT
 47.04°N 109.45°W (Elev. 4111 ft)
5:47 pm MDT Mar 14, 2026
6pm MDT Mar 14, 2026-6pm MDT Mar 21, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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