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Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

light snow,mist

7°F

-14°C

Humidity 91%
Wind Speed NW 6 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 5°F (-15°C)
Visibility 2.00 mi
Wind Chill-4°F (-20°C)
Last update 22 Jan 05:26 PM MST
Extended Forecast for

Lewistown Municipal MT

  • This Afternoon

    This Afternoon: Snow. Steady temperature around 2. Wind chill values as low as -10. North wind around 7 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.

    High: 2 °F

    Snow

  • Tonight

    Tonight: Snow, mainly before 8pm. Low around -5. Wind chill values as low as -20. East wind 6 to 8 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: -5 °F

    Snow then
    Chance Snow

  • Friday

    Friday: A 20 percent chance of snow before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 6. Wind chill values as low as -15. East southeast wind around 6 mph becoming west northwest in the morning.

    High: 6 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around -6. Wind chill values as low as -15. Light and variable wind becoming south southwest around 6 mph in the evening.

    Low: -6 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of snow, mainly after 11am. Mostly cloudy, with a high near 17. Southwest wind 6 to 13 mph becoming northwest in the morning. Winds could gust as high as 22 mph. New snow accumulation of around an inch possible.

    High: 17 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 40 percent chance of snow before 11pm. Mostly cloudy, with a low around -4. West wind 5 to 10 mph, with gusts as high as 20 mph. New snow accumulation of around an inch possible.

    Low: -4 °F

    Chance Snow
    then Mostly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 27. Southwest wind around 7 mph.

    High: 27 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 12. West wind around 10 mph.

    Low: 12 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Snow. Steady temperature around 2. Wind chill values as low as -10. North wind around 7 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow, mainly before 8pm. Low around -5. Wind chill values as low as -20. East wind 6 to 8 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday
A 20 percent chance of snow before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 6. Wind chill values as low as -15. East southeast wind around 6 mph becoming west northwest in the morning.
Friday Night
Partly cloudy, with a low around -6. Wind chill values as low as -15. Light and variable wind becoming south southwest around 6 mph in the evening.
Saturday
A 30 percent chance of snow, mainly after 11am. Mostly cloudy, with a high near 17. Southwest wind 6 to 13 mph becoming northwest in the morning. Winds could gust as high as 22 mph. New snow accumulation of around an inch possible.
Saturday Night
A 40 percent chance of snow before 11pm. Mostly cloudy, with a low around -4. West wind 5 to 10 mph, with gusts as high as 20 mph. New snow accumulation of around an inch possible.
Sunday
Mostly sunny, with a high near 27. Southwest wind around 7 mph.
Sunday Night
Partly cloudy, with a low around 12. West wind around 10 mph.
Monday
Mostly sunny, with a high near 35.
Monday Night
Mostly cloudy, with a low around 14.
Tuesday
Partly sunny, with a high near 32.
Tuesday Night
Mostly cloudy, with a low around 14.
Wednesday
A slight chance of snow. Partly sunny, with a high near 32.
Wednesday Night
A slight chance of snow. Mostly cloudy, with a low around 11.
Thursday
A slight chance of snow. Mostly cloudy, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewistown Municipal MT
 47.04°N 109.45°W (Elev. 4111 ft)
Last Update:
4:36 pm MST Jan 22, 2026
Forecast Valid:
5pm MST Jan 22, 2026-6pm MST Jan 29, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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