Heavy Mountain Snow in the Northwest U.S.; Wintry Mix in the Northeast U.S.

Two more cold fronts will pass through the Northwest U.S. this week with heavy mountain snow continuing across the Cascades, and northern Rockies. A quick moving storm system will bring mixed precipitation including some freezing rain across the Northeast U.S. overnight into Wednesday. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Overcast

43°F

6°C

Humidity 41%
Wind Speed SSW 13 MPH
Barometer 29.51 in (999.32 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 07 Jan 12:00 AM MST
Extended Forecast for

Lewistown Municipal MT

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 38. Southwest wind around 15 mph, with gusts as high as 26 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 43. West wind 14 to 20 mph, with gusts as high as 31 mph.

    High: 43 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 20. West wind 7 to 13 mph becoming south southwest after midnight. Winds could gust as high as 22 mph.

    Low: 20 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 33. West wind 9 to 16 mph, with gusts as high as 26 mph.

    High: 33 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 18. West wind 11 to 14 mph, with gusts as high as 23 mph.

    Low: 18 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 33. West northwest wind 13 to 15 mph, with gusts as high as 26 mph.

    High: 33 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 21. West wind 9 to 11 mph, with gusts as high as 22 mph.

    Low: 21 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 44. West wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 44 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 38. Southwest wind around 15 mph, with gusts as high as 26 mph.
Wednesday
Mostly sunny, with a high near 43. West wind 14 to 20 mph, with gusts as high as 31 mph.
Wednesday Night
Partly cloudy, with a low around 20. West wind 7 to 13 mph becoming south southwest after midnight. Winds could gust as high as 22 mph.
Thursday
Mostly sunny, with a high near 33. West wind 9 to 16 mph, with gusts as high as 26 mph.
Thursday Night
Mostly cloudy, with a low around 18. West wind 11 to 14 mph, with gusts as high as 23 mph.
Friday
Partly sunny, with a high near 33. West northwest wind 13 to 15 mph, with gusts as high as 26 mph.
Friday Night
Mostly cloudy, with a low around 21. West wind 9 to 11 mph, with gusts as high as 22 mph.
Saturday
Partly sunny, with a high near 44. West wind 8 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
Partly sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 29.
Monday
Mostly sunny, with a high near 47.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Partly sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown Municipal MT
 47.04°N 109.45°W (Elev. 4111 ft)
10:42 pm MST Jan 6, 2026
12am MST Jan 7, 2026-6pm MST Jan 13, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database