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Fire Weather in the Central and Southern Plains; Pacific Storms Impacting the West

Gusty to high winds and low relative humidity will bring elevated to critical fire weather to the central and southern Plains into Wednesday. Two Pacific storms will impact the western U.S. into Wednesday with gusty winds, low elevation rain, and heavy mountain snow. Read More >

Hazardous Weather Conditions

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

48°F

9°C

Humidity 46%
Wind Speed SSE 10 MPH
Barometer 29.49 in (998.65 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 16 Feb 03:20 PM MST
Extended Forecast for

Lewistown MT

High Wind Warning February 17, 09:00am until February 17, 08:00pm
Click here for hazard details and duration
High Wind Warning

  • Tonight

    Tonight: Increasing clouds, with a low around 30. Southeast wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 30 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Rain and snow likely before 3pm, then a slight chance of snow between 3pm and 4pm. Cloudy, with a temperature rising to near 41 by 11am, then falling to around 29 during the remainder of the day. Breezy, with an east southeast wind 6 to 11 mph becoming west northwest 16 to 26 mph in the morning. Winds could gust as high as 39 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 41 °F⇓

    Chance
    Rain/Snow
    then Snow
    Likely and
    Breezy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around 1. Wind chill values as low as -5. Blustery, with a west northwest wind 18 to 23 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 36 mph.

    Low: 1 °F

    Slight Chance
    Snow and
    Blustery then
    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of snow after 11am. Mostly cloudy, with a high near 13. Wind chill values as low as -10. Northwest wind 8 to 10 mph, with gusts as high as 20 mph. New snow accumulation of less than a half inch possible.

    High: 13 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before 11pm. Cloudy, with a low around -3. Northwest wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: -3 °F

    Snow Likely

  • Thursday

    Thursday: A 30 percent chance of snow, mainly before 11am. Partly sunny, with a high near 18. Light and variable wind becoming east around 5 mph in the afternoon. New snow accumulation of less than a half inch possible.

    High: 18 °F

    Chance Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 2. East wind around 6 mph becoming light and variable in the evening.

    Low: 2 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of snow after 11am. Mostly cloudy, with a high near 30. Light and variable wind becoming west northwest 5 to 8 mph in the morning.

    High: 30 °F

    Slight Chance
    Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around 9.

    Low: 9 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 30. Southeast wind 6 to 10 mph, with gusts as high as 18 mph.
Tuesday
Rain and snow likely before 3pm, then a slight chance of snow between 3pm and 4pm. Cloudy, with a temperature rising to near 41 by 11am, then falling to around 29 during the remainder of the day. Breezy, with an east southeast wind 6 to 11 mph becoming west northwest 16 to 26 mph in the morning. Winds could gust as high as 39 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 11pm. Mostly cloudy, with a low around 1. Wind chill values as low as -5. Blustery, with a west northwest wind 18 to 23 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 36 mph.
Wednesday
A 30 percent chance of snow after 11am. Mostly cloudy, with a high near 13. Wind chill values as low as -10. Northwest wind 8 to 10 mph, with gusts as high as 20 mph. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow likely, mainly before 11pm. Cloudy, with a low around -3. Northwest wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Thursday
A 30 percent chance of snow, mainly before 11am. Partly sunny, with a high near 18. Light and variable wind becoming east around 5 mph in the afternoon. New snow accumulation of less than a half inch possible.
Thursday Night
Mostly cloudy, with a low around 2. East wind around 6 mph becoming light and variable in the evening.
Friday
A slight chance of snow after 11am. Mostly cloudy, with a high near 30. Light and variable wind becoming west northwest 5 to 8 mph in the morning.
Friday Night
Partly cloudy, with a low around 9.
Saturday
Mostly sunny, with a high near 32.
Saturday Night
Partly cloudy, with a low around 9.
Sunday
Mostly sunny, with a high near 38.
Sunday Night
Partly cloudy, with a low around 19.
Monday
A slight chance of rain and snow. Partly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewistown MT
 47.07°N 109.43°W (Elev. 3898 ft)
Last Update:
1:27 pm MST Feb 16, 2026
Forecast Valid:
3pm MST Feb 16, 2026-6pm MST Feb 23, 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