Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Partly Cloudy

41°F

5°C

Humidity 26%
Wind Speed WNW 24 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 11 Mar 02:54 PM MDT
Extended Forecast for

Lewistown MT

Winter Storm Watch March 12, 06:00pm until March 14, 06:00pm
High Wind Warning March 12, 03:00am until March 12, 06:00pm
Click here for hazard details and duration
Winter Storm Watch
High Wind Warning
  • Tonight

    Tonight: A slight chance of snow between 7pm and 11pm.  Cloudy, with a temperature falling to near 34 by midnight, then rising to around 44 during the remainder of the night. Breezy, with a southwest wind 8 to 18 mph increasing to 18 to 28 mph after midnight. Winds could gust as high as 45 mph.  Chance of precipitation is 20%.

    Low: 34 °F

    Slight Chance
    Snow then
    Cloudy and
    Breezy

  • Thursday

    Thursday: A chance of rain showers before 9am, then a chance of rain and snow showers between 9am and 11am, then a chance of snow showers after 11am.  Cloudy, with a temperature falling to around 36 by 5pm. Windy, with a west northwest wind 29 to 39 mph, with gusts as high as 55 mph.  Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 47 °F

    Windy. Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Thursday Night

    Thursday Night: Snow.  Patchy blowing snow between 7pm and 9pm. Low around 23. Blustery, with a west wind 20 to 25 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 39 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 23 °F

    Snow and
    Patchy
    Blowing Snow

  • Friday

    Friday: Snow.  High near 32. West northwest wind 7 to 9 mph.  Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    High: 32 °F

    Snow

  • Friday Night

    Friday Night: Snow.  Low around 20. North wind around 7 mph becoming southeast after midnight.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 20 °F

    Snow

  • Saturday

    Saturday: Snow. The snow could be heavy at times.  High near 33. East southeast wind 6 to 14 mph becoming north in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 33 °F

    Heavy Snow

  • Saturday Night

    Saturday Night: Snow, mainly before midnight.  Low around 6. North northwest wind 8 to 18 mph becoming west after midnight. Winds could gust as high as 29 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 6 °F

    Snow then
    Chance Snow

  • Sunday

    Sunday: A slight chance of snow.  Partly sunny, with a high near 29. Southwest wind 5 to 7 mph.

    High: 29 °F

    Slight Chance
    Snow

  • Sunday Night

    Sunday Night: A chance of snow, mainly after midnight.  Mostly cloudy, with a low around 14.

    Low: 14 °F

    Chance Snow

Detailed Forecast

Tonight
A slight chance of snow between 7pm and 11pm. Cloudy, with a temperature falling to near 34 by midnight, then rising to around 44 during the remainder of the night. Breezy, with a southwest wind 8 to 18 mph increasing to 18 to 28 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 20%.
Thursday
A chance of rain showers before 9am, then a chance of rain and snow showers between 9am and 11am, then a chance of snow showers after 11am. Cloudy, with a temperature falling to around 36 by 5pm. Windy, with a west northwest wind 29 to 39 mph, with gusts as high as 55 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Thursday Night
Snow. Patchy blowing snow between 7pm and 9pm. Low around 23. Blustery, with a west wind 20 to 25 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Friday
Snow. High near 32. West northwest wind 7 to 9 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Friday Night
Snow. Low around 20. North wind around 7 mph becoming southeast after midnight. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Saturday
Snow. The snow could be heavy at times. High near 33. East southeast wind 6 to 14 mph becoming north in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Saturday Night
Snow, mainly before midnight. Low around 6. North northwest wind 8 to 18 mph becoming west after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Sunday
A slight chance of snow. Partly sunny, with a high near 29. Southwest wind 5 to 7 mph.
Sunday Night
A chance of snow, mainly after midnight. Mostly cloudy, with a low around 14.
Monday
A chance of snow before 3pm, then a chance of rain. Cloudy, with a high near 47.
Monday Night
A chance of rain. Mostly cloudy, with a low around 36.
Tuesday
Partly sunny, with a high near 60.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Partly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown MT
 47.05°N 109.42°W (Elev. 4075 ft)
1:32 pm MDT Mar 11, 2026
3pm MDT Mar 11, 2026-6pm MDT Mar 18, 2026
 
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