National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

light snow,mist

-4°C

24°F

Humidity 83%
Wind Speed E 12 MPH
Barometer 29.7 in (1005.76 mb)
Dewpoint -7°C (20°F)
Visibility 2.82 km
Wind Chill-11°C (13°F)
Last update 09 Mar 03:11 AM MDT
Extended Forecast for

Lewistown MT

Winter Weather Advisory March 9, 03:19am until March 9, 09:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory March 9, 03:19am until March 9, 09:00am

    NOW until 9:00am Mon

    Winter Weather Advisory

  • Overnight

    Low: -6 °C

    Snow

  • Monday

    Monday: A 50 percent chance of snow, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 4. Breezy, with an east southeast wind 13 to 23 km/h becoming west northwest 32 to 42 km/h. Winds could gust as high as 60 km/h. New snow accumulation of less than one centimeter possible.

    High: 4 °C

    Chance Snow
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around -9. Blustery, with a west wind 27 to 37 km/h decreasing to 11 to 21 km/h. Winds could gust as high as 50 km/h.

    Low: -9 °C

    Partly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Snow likely, mainly after 3pm. Partly sunny, with a high near 2. West northwest wind 11 to 16 km/h increasing to 24 to 29 km/h in the afternoon. Winds could gust as high as 40 km/h. Chance of precipitation is 60%. New snow accumulation of less than one centimeter possible.

    High: 2 °C

    Slight Chance
    Snow then
    Snow Likely

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow before midnight. Partly cloudy, with a low around -9. West southwest wind 24 to 29 km/h decreasing to 16 to 21 km/h in the evening. Winds could gust as high as 40 km/h.

    Low: -9 °C

    Slight Chance
    Snow then
    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 6. Southwest wind 14 to 19 km/h increasing to 24 to 29 km/h in the afternoon. Winds could gust as high as 50 km/h.

    High: 6 °C

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 3am, then a chance of rain. Cloudy, with a low around 1. West southwest wind 18 to 23 km/h increasing to 24 to 29 km/h after midnight. Winds could gust as high as 50 km/h. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 1 °C

    Chance
    Rain/Snow

  • Thursday

    Thursday: Rain and snow likely, mainly after noon. Cloudy, with a high near 9. Windy, with a west southwest wind 35 to 40 km/h increasing to 45 to 50 km/h in the afternoon. Winds could gust as high as 80 km/h.

    High: 9 °C

    Rain/Snow
    Likely and
    Windy

Detailed Forecast

Overnight
Snow. Low around -6. East wind around 14 km/h. Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 3 centimeters possible.
Monday
A 50 percent chance of snow, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 4. Breezy, with an east southeast wind 13 to 23 km/h becoming west northwest 32 to 42 km/h. Winds could gust as high as 60 km/h. New snow accumulation of less than one centimeter possible.
Monday Night
Partly cloudy, with a low around -9. Blustery, with a west wind 27 to 37 km/h decreasing to 11 to 21 km/h. Winds could gust as high as 50 km/h.
Tuesday
Snow likely, mainly after 3pm. Partly sunny, with a high near 2. West northwest wind 11 to 16 km/h increasing to 24 to 29 km/h in the afternoon. Winds could gust as high as 40 km/h. Chance of precipitation is 60%. New snow accumulation of less than one centimeter possible.
Tuesday Night
A 20 percent chance of snow before midnight. Partly cloudy, with a low around -9. West southwest wind 24 to 29 km/h decreasing to 16 to 21 km/h in the evening. Winds could gust as high as 40 km/h.
Wednesday
Partly sunny, with a high near 6. Southwest wind 14 to 19 km/h increasing to 24 to 29 km/h in the afternoon. Winds could gust as high as 50 km/h.
Wednesday Night
A chance of rain and snow before 3am, then a chance of rain. Cloudy, with a low around 1. West southwest wind 18 to 23 km/h increasing to 24 to 29 km/h after midnight. Winds could gust as high as 50 km/h. Chance of precipitation is 40%. Little or no snow accumulation expected.
Thursday
Rain and snow likely, mainly after noon. Cloudy, with a high near 9. Windy, with a west southwest wind 35 to 40 km/h increasing to 45 to 50 km/h in the afternoon. Winds could gust as high as 80 km/h.
Thursday Night
Snow. Cloudy, with a low around -4. Blustery.
Friday
Snow likely. Cloudy, with a high near 3.
Friday Night
Snow likely. Cloudy, with a low around -6.
Saturday
Snow. Cloudy, with a high near 3.
Saturday Night
Snow. Cloudy, with a low around -12.
Sunday
A chance of snow. Cloudy, with a high near -2.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewistown MT
 47.07°N 109.43°W (Elev. 3898 m)
Last Update:
3:02 am MDT Mar 9, 2026
Forecast Valid:
3am 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation