Major Winter Storm in the North-Central U.S.; Severe Weather from the Mid-South to Ohio Valley

A major winter storm will bring a swath of heavy snowfall, strong winds, blizzard conditions and freezing rain to the Northern Plains into the Great Lakes region. A line of storms will be capable of producing widespread damaging winds, tornadoes, and some large hail from the Mid-south to the Ohio Valley and the Southeast. Critical fire weather concerns shift to the southern Rockies and Plains. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

21°F

-6°C

Humidity 53%
Wind Speed W 4 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 15 Mar 03:54 PM MDT
Extended Forecast for

Lewistown Municipal MT

High Wind Warning March 16, 03:00pm until March 17, 06:00pm
Click here for hazard details and duration
High Wind Warning
  • Tonight

    Tonight: Mostly cloudy, with a low around 10. Light and variable wind becoming south southwest 5 to 7 mph in the evening.

    Low: 10 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of snow, mixing with rain after 11am, then gradually ending.  Mostly cloudy, with a high near 46. Southwest wind 8 to 13 mph, with gusts as high as 25 mph.  Chance of precipitation is 20%.

    High: 46 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: A 20 percent chance of rain before midnight.  Mostly cloudy, with a low around 38. Breezy, with a west wind 14 to 23 mph, with gusts as high as 36 mph.

    Low: 38 °F

    Slight Chance
    Rain then
    Mostly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 56. Breezy, with a west wind 24 to 26 mph, with gusts as high as 38 mph.

    High: 56 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40. West southwest wind 16 to 21 mph, with gusts as high as 32 mph.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 62. Breezy, with a west southwest wind 16 to 23 mph, with gusts as high as 34 mph.

    High: 62 °F

    Mostly Cloudy
    then Partly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 42. West southwest wind 13 to 20 mph, with gusts as high as 30 mph.

    Low: 42 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 68. Breezy, with a southwest wind 15 to 22 mph, with gusts as high as 34 mph.

    High: 68 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 10. Light and variable wind becoming south southwest 5 to 7 mph in the evening.
Monday
A slight chance of snow, mixing with rain after 11am, then gradually ending. Mostly cloudy, with a high near 46. Southwest wind 8 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Monday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 38. Breezy, with a west wind 14 to 23 mph, with gusts as high as 36 mph.
Tuesday
Partly sunny, with a high near 56. Breezy, with a west wind 24 to 26 mph, with gusts as high as 38 mph.
Tuesday Night
Mostly cloudy, with a low around 40. West southwest wind 16 to 21 mph, with gusts as high as 32 mph.
Wednesday
Partly sunny, with a high near 62. Breezy, with a west southwest wind 16 to 23 mph, with gusts as high as 34 mph.
Wednesday Night
Mostly cloudy, with a low around 42. West southwest wind 13 to 20 mph, with gusts as high as 30 mph.
Thursday
Partly sunny, with a high near 68. Breezy, with a southwest wind 15 to 22 mph, with gusts as high as 34 mph.
Thursday Night
Mostly cloudy, with a low around 44.
Friday
Mostly cloudy, with a high near 68.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 43.
Saturday
A slight chance of rain. Mostly cloudy, with a high near 68.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Mostly sunny, with a high near 60.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown Municipal MT
 47.04°N 109.45°W (Elev. 4111 ft)
2:27 pm MDT Mar 15, 2026
4pm MDT Mar 15, 2026-6pm MDT Mar 22, 2026
 
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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