Severe Thunderstorm, Flooding, and Winter Weather Threats on Tuesday

Scattered severe thunderstorms are forecast Tuesday from the southern Plains into the southern Great Lakes vicinity. Thunderstorms may also produce heavy to excessive rain that could pose a flooding threat from central Texas into southern Oklahoma and northern Missouri into southern Michigan. A heavy wintry mix is forecast for the Great Lakes into northern Maine. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

19°F

-7°C

Humidity 73%
Wind Speed SW 6 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 10 Mar 12:20 AM MDT
Extended Forecast for

6 Miles N Lewistown MT

High Wind Watch March 12, 12:00am until March 12, 06:00pm
Click here for hazard details and duration
High Wind Watch
  • Overnight

    Overnight: Partly cloudy, with a low around 19. West wind 5 to 7 mph.

    Low: 19 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of snow after 2pm.  Partly sunny, with a high near 36. South southwest wind 5 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph.

    High: 36 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow before 11pm.  Partly cloudy, with a low around 17. West northwest wind 8 to 13 mph becoming southwest after midnight. Winds could gust as high as 22 mph.

    Low: 17 °F

    Slight Chance
    Snow then
    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 41. West wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 41 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of snow before 3am, then a chance of rain and snow.  Cloudy, with a low around 31. Southwest wind 9 to 16 mph, with gusts as high as 28 mph.  Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Thursday

    Thursday: Rain, possibly mixed with snow, becoming all snow after 3pm.  High near 46. Windy, with a west southwest wind 23 to 33 mph, with gusts as high as 49 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 46 °F

    Rain/Snow
    Likely and
    Breezy then
    Rain/Snow and
    Windy

  • Thursday Night

    Thursday Night: Snow.  Low around 26. Blustery, with a west southwest wind 18 to 23 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 36 mph.  Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 26 °F

    Snow and
    Blustery

  • Friday

    Friday: Snow.  Cloudy, with a high near 39. West wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 39 °F

    Snow

  • Friday Night

    Friday Night: Snow.  Cloudy, with a low around 20.

    Low: 20 °F

    Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 19. West wind 5 to 7 mph.
Tuesday
A 20 percent chance of snow after 2pm. Partly sunny, with a high near 36. South southwest wind 5 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph.
Tuesday Night
A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 17. West northwest wind 8 to 13 mph becoming southwest after midnight. Winds could gust as high as 22 mph.
Wednesday
Partly sunny, with a high near 41. West wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph.
Wednesday Night
A chance of snow before 3am, then a chance of rain and snow. Cloudy, with a low around 31. Southwest wind 9 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Thursday
Rain, possibly mixed with snow, becoming all snow after 3pm. High near 46. Windy, with a west southwest wind 23 to 33 mph, with gusts as high as 49 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday Night
Snow. Low around 26. Blustery, with a west southwest wind 18 to 23 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Friday
Snow. Cloudy, with a high near 39. West wind 6 to 9 mph, with gusts as high as 20 mph.
Friday Night
Snow. Cloudy, with a low around 20.
Saturday
Snow. Cloudy, with a high near 31.
Saturday Night
Snow likely. Mostly cloudy, with a low around 9.
Sunday
A slight chance of snow. Mostly cloudy, with a high near 30.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 17.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles N Lewistown MT
 47.15°N 109.44°W (Elev. 4094 ft)
12:32 am MDT Mar 10, 2026
12am MDT Mar 10, 2026-6pm MDT Mar 16, 2026
 
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Additional Resources

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