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Critical Fire Weather and Severe Thunderstorm Threats This Week

Gusty winds and low relative humidity will contribute to critical fire weather Monday over parts of the central and southern High Plains. Scattered to widespread severe thunderstorms may bring damaging winds, large hail, and tornadoes Monday through Thursday over the lower Mississippi River Valley and southern Plains into the Midwest and Ohio Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Overcast

25°F

-4°C

Humidity 79%
Wind Speed ENE 10 MPH
Barometer 29.71 in (1006.1 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 09 Mar 02:00 AM MDT
Extended Forecast for

Lewistown Municipal MT

Winter Weather Advisory March 9, 02:24am until March 9, 09:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory March 9, 02:24am until March 9, 09:00am

    NOW until 9:00am Mon

    Winter Weather Advisory

  • Overnight

    Low: 25 °F

    Snow Likely

  • Monday

    Monday: A 50 percent chance of snow, mainly before 1pm. Mostly cloudy, with a high near 39. Breezy, with a southeast wind 8 to 13 mph becoming west northwest 20 to 25 mph in the morning. Winds could gust as high as 36 mph. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Chance Snow
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 17. Blustery, with a west wind 18 to 23 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 32 mph.

    Low: 17 °F

    Partly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Snow likely, mainly after 2pm. Partly sunny, with a high near 35. West northwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Slight Chance
    Snow then
    Snow Likely

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow before midnight. Partly cloudy, with a low around 17. West southwest wind 10 to 18 mph, with gusts as high as 25 mph.

    Low: 17 °F

    Slight Chance
    Snow then
    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of snow after noon. Partly sunny, with a high near 43. West southwest wind 11 to 20 mph, with gusts as high as 32 mph.

    High: 43 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Wednesday Night

    Wednesday Night: A chance of rain and snow. Cloudy, with a low around 33. West southwest wind 14 to 21 mph, with gusts as high as 36 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 33 °F

    Chance
    Rain/Snow

  • Thursday

    Thursday: Rain and snow, mainly after noon. Cloudy, with a high near 47. Windy, with a west wind 24 to 33 mph, with gusts as high as 50 mph.

    High: 47 °F

    Rain/Snow and
    Windy

Detailed Forecast

Overnight
Snow likely. Cloudy, with a low around 25. East northeast wind around 9 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than one inch possible.
Monday
A 50 percent chance of snow, mainly before 1pm. Mostly cloudy, with a high near 39. Breezy, with a southeast wind 8 to 13 mph becoming west northwest 20 to 25 mph in the morning. Winds could gust as high as 36 mph. New snow accumulation of less than a half inch possible.
Monday Night
Partly cloudy, with a low around 17. Blustery, with a west wind 18 to 23 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 32 mph.
Tuesday
Snow likely, mainly after 2pm. Partly sunny, with a high near 35. West northwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday Night
A 20 percent chance of snow before midnight. Partly cloudy, with a low around 17. West southwest wind 10 to 18 mph, with gusts as high as 25 mph.
Wednesday
A 20 percent chance of snow after noon. Partly sunny, with a high near 43. West southwest wind 11 to 20 mph, with gusts as high as 32 mph.
Wednesday Night
A chance of rain and snow. Cloudy, with a low around 33. West southwest wind 14 to 21 mph, with gusts as high as 36 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Thursday
Rain and snow, mainly after noon. Cloudy, with a high near 47. Windy, with a west wind 24 to 33 mph, with gusts as high as 50 mph.
Thursday Night
Snow. Cloudy, with a low around 25. Blustery.
Friday
Snow likely. Cloudy, with a high near 38.
Friday Night
Snow likely. Cloudy, with a low around 22.
Saturday
Snow. Cloudy, with a high near 38.
Saturday Night
Snow. Cloudy, with a low around 11.
Sunday
A chance of snow. Cloudy, with a high near 29.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown Municipal MT
 47.04°N 109.45°W (Elev. 4111 ft)
Last Update:
12:31 am MDT Mar 9, 2026
Forecast Valid:
2am MDT Mar 9, 2026-6pm MDT Mar 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation