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

Hazardous Weather Conditions

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

22°F

-6°C

Humidity 81%
Wind Speed N 0 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 31 Mar 01:54 AM MDT
Extended Forecast for

Lewistown Municipal MT

Winter Storm Watch April 2, 12:00pm until April 3, 12:00pm
Click here for hazard details and duration
Winter Storm Watch

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 18. North wind around 6 mph becoming east.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of snow, mainly after 1pm. Partly sunny, with a high near 36. Southeast wind 6 to 13 mph, with gusts as high as 21 mph. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Partly Sunny
    then Chance
    Snow

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow between 10pm and midnight. Mostly cloudy, with a low around 23. Southeast wind 6 to 13 mph, with gusts as high as 21 mph.

    Low: 23 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 52. East wind 3 to 7 mph.

    High: 52 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 30. East southeast wind 7 to 11 mph, with gusts as high as 18 mph.

    Low: 30 °F

    Chance Rain

  • Thursday

    Thursday: A chance of rain and snow before 9am, then a chance of rain between 9am and noon, then rain, possibly mixed with snow after noon. High near 46. Southeast wind 7 to 13 mph becoming east northeast in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 46 °F

    Chance
    Rain/Snow
    then
    Rain/Snow

  • Thursday Night

    Thursday Night: Snow, possibly mixed with rain, becoming all snow after midnight. Low around 25. Northeast wind around 14 mph becoming north northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 25 °F

    Rain/Snow
    then Snow

  • Friday

    Friday: Snow likely, mainly before noon. Mostly cloudy, with a high near 38. Northwest wind around 14 mph, with gusts as high as 24 mph.

    High: 38 °F

    Snow Likely

  • Friday Night

    Friday Night: A slight chance of snow before midnight. Partly cloudy, with a low around 22.

    Low: 22 °F

    Slight Chance
    Snow then
    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 18. North wind around 6 mph becoming east.
Tuesday
A 30 percent chance of snow, mainly after 1pm. Partly sunny, with a high near 36. Southeast wind 6 to 13 mph, with gusts as high as 21 mph. New snow accumulation of less than a half inch possible.
Tuesday Night
A 20 percent chance of snow between 10pm and midnight. Mostly cloudy, with a low around 23. Southeast wind 6 to 13 mph, with gusts as high as 21 mph.
Wednesday
Partly sunny, with a high near 52. East wind 3 to 7 mph.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 30. East southeast wind 7 to 11 mph, with gusts as high as 18 mph.
Thursday
A chance of rain and snow before 9am, then a chance of rain between 9am and noon, then rain, possibly mixed with snow after noon. High near 46. Southeast wind 7 to 13 mph becoming east northeast in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday Night
Snow, possibly mixed with rain, becoming all snow after midnight. Low around 25. Northeast wind around 14 mph becoming north northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Friday
Snow likely, mainly before noon. Mostly cloudy, with a high near 38. Northwest wind around 14 mph, with gusts as high as 24 mph.
Friday Night
A slight chance of snow before midnight. Partly cloudy, with a low around 22.
Saturday
Sunny, with a high near 48.
Saturday Night
Partly cloudy, with a low around 28.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 28.
Monday
Partly sunny, with a high near 52.
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:
12:31 am MDT Mar 31, 2026
Forecast Valid:
2am MDT Mar 31, 2026-6pm MDT Apr 6, 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