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

Lewistown, Lewistown Municipal Airport (KLWT)

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

NA

45°F

7°C

Humidity 48%
Wind Speed W 8 MPH
Barometer 29.68 in (1005.08 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 15 Apr 02:05 AM MDT
Extended Forecast for

Lewistown Municipal MT

  • Overnight

    Overnight: Snow showers. Steady temperature around 33. West wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 33 °F

    Snow Showers

  • Thursday

    Thursday: A 50 percent chance of snow showers. Partly sunny, with a high near 38. Northwest wind 17 to 21 mph, with gusts as high as 31 mph. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of snow showers, mainly before 2am. Mostly cloudy, with a low around 17. West northwest wind 10 to 17 mph, with gusts as high as 26 mph. New snow accumulation of less than a half inch possible.

    Low: 17 °F

    Chance Snow
    Showers

  • Friday

    Friday: A 40 percent chance of snow showers, mainly after noon. Partly sunny, with a high near 42. Northwest wind 10 to 17 mph, with gusts as high as 28 mph. Little or no snow accumulation expected.

    High: 42 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 22. North northwest wind 6 to 14 mph becoming west southwest after midnight. Winds could gust as high as 23 mph.

    Low: 22 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 55. West southwest wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31. West northwest wind 6 to 10 mph becoming south after midnight. Winds could gust as high as 18 mph.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 66. South southwest wind 6 to 8 mph becoming west in the afternoon.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

Detailed Forecast

Overnight
Snow showers. Steady temperature around 33. West wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.
Thursday
A 50 percent chance of snow showers. Partly sunny, with a high near 38. Northwest wind 17 to 21 mph, with gusts as high as 31 mph. New snow accumulation of less than a half inch possible.
Thursday Night
A 30 percent chance of snow showers, mainly before 2am. Mostly cloudy, with a low around 17. West northwest wind 10 to 17 mph, with gusts as high as 26 mph. New snow accumulation of less than a half inch possible.
Friday
A 40 percent chance of snow showers, mainly after noon. Partly sunny, with a high near 42. Northwest wind 10 to 17 mph, with gusts as high as 28 mph. Little or no snow accumulation expected.
Friday Night
Partly cloudy, with a low around 22. North northwest wind 6 to 14 mph becoming west southwest after midnight. Winds could gust as high as 23 mph.
Saturday
Sunny, with a high near 55. West southwest wind 7 to 10 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 31. West northwest wind 6 to 10 mph becoming south after midnight. Winds could gust as high as 18 mph.
Sunday
Sunny, with a high near 66. South southwest wind 6 to 8 mph becoming west in the afternoon.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Mostly sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Sunny, with a high near 74.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 44.
Wednesday
A chance of showers. Partly sunny, with a high near 66.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewistown Municipal MT
 47.04°N 109.45°W (Elev. 4111 ft)
Last Update:
3:31 am MDT Apr 16, 2026
Forecast Valid:
4am MDT Apr 16, 2026-6pm MDT Apr 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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