Major Winter Storm Ongoing in the Upper Midwest; Severe Weather Tonight from the Mid-South to the Ohio Valley

A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through Monday across the Upper Midwest and Upper Great Lakes. 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 through tonight, moving into the Mid-Atlantic Monday. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

12°F

-11°C

Humidity 79%
Wind Speed N 0 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Last update 16 Mar 03:54 AM MDT
Extended Forecast for

Lewistown MT

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

    Today: Mostly cloudy, with a high near 44. South wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 21 mph.

    High: 44 °F

    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of rain between 7pm and 10pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 37. West wind 11 to 21 mph, with gusts as high as 34 mph.  Chance of precipitation is 20%.

    Low: 37 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 56. Breezy, with a west wind 22 to 25 mph, with gusts as high as 38 mph.

    High: 56 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 40. West southwest wind 15 to 21 mph, with gusts as high as 34 mph.

    Low: 40 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 61. Breezy, with a west southwest wind 14 to 23 mph, with gusts as high as 36 mph.

    High: 61 °F

    Mostly Cloudy
    then Partly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41. West southwest wind 11 to 17 mph, with gusts as high as 31 mph.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 68. West southwest wind 10 to 17 mph, with gusts as high as 29 mph.

    High: 68 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 45. West wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 45 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 68.

    High: 68 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly cloudy, with a high near 44. South wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 21 mph.
Tonight
A slight chance of rain between 7pm and 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 37. West wind 11 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 56. Breezy, with a west wind 22 to 25 mph, with gusts as high as 38 mph.
Tuesday Night
Partly cloudy, with a low around 40. West southwest wind 15 to 21 mph, with gusts as high as 34 mph.
Wednesday
Mostly cloudy, with a high near 61. Breezy, with a west southwest wind 14 to 23 mph, with gusts as high as 36 mph.
Wednesday Night
Mostly cloudy, with a low around 41. West southwest wind 11 to 17 mph, with gusts as high as 31 mph.
Thursday
Partly sunny, with a high near 68. West southwest wind 10 to 17 mph, with gusts as high as 29 mph.
Thursday Night
Mostly cloudy, with a low around 45. West wind 10 to 14 mph, with gusts as high as 24 mph.
Friday
Mostly cloudy, with a high near 68.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 41.
Saturday
A chance of rain. Mostly cloudy, with a high near 59.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Mostly sunny, with a high near 52.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown MT
 47.07°N 109.43°W (Elev. 3898 ft)
3:57 am MDT Mar 16, 2026
4am MDT Mar 16, 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