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

USCRN SITE NEAR LEWISTOWN 42WSW (JRWM8)

Lat: 46.88472°NLon: 110.28944°WElev: 5045.0ft.

NA

62°F

17°C

Humidity 30%
Wind Speed NA 8 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 11 Apr 11:00 AM MDT
Extended Forecast for

6 Miles WSW Windham MT

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 70. Southwest wind 14 to 17 mph, with gusts as high as 26 mph.

    High: 70 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 38. West wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    Low: 38 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Increasing clouds, with a high near 56. West wind 7 to 9 mph becoming east northeast in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Mostly Sunny
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before midnight, then rain likely after midnight. Low around 36. East northeast wind 5 to 7 mph becoming south southwest after midnight. Chance of precipitation is 90%.

    Low: 36 °F

    Showers then
    Rain Likely

  • Monday

    Monday: Rain likely before 9am, then snow likely between 9am and noon, then rain after noon. Some thunder is also possible. High near 53. West wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 53 °F

    Rain/Snow
    Likely then
    Showers

  • Monday Night

    Monday Night: Rain likely before 3am, then a slight chance of rain and snow. Mostly cloudy, with a low around 34. West southwest wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain Likely
    then Slight
    Chance
    Rain/Snow

  • Tuesday

    Tuesday: A 20 percent chance of rain after noon. Mostly sunny, with a high near 55. Breezy, with a west southwest wind 14 to 22 mph, with gusts as high as 33 mph.

    High: 55 °F

    Mostly Sunny
    then Slight
    Chance Rain
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 35. West wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 30 mph.

    Low: 35 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Rain and snow likely, mainly after noon. Mostly cloudy, with a high near 53. Breezy.

    High: 53 °F

    Rain/Snow
    Likely and
    Breezy

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 70. Southwest wind 14 to 17 mph, with gusts as high as 26 mph.
Tonight
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 38. West wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Increasing clouds, with a high near 56. West wind 7 to 9 mph becoming east northeast in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and possibly a thunderstorm before midnight, then rain likely after midnight. Low around 36. East northeast wind 5 to 7 mph becoming south southwest after midnight. Chance of precipitation is 90%.
Monday
Rain likely before 9am, then snow likely between 9am and noon, then rain after noon. Some thunder is also possible. High near 53. West wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Monday Night
Rain likely before 3am, then a slight chance of rain and snow. Mostly cloudy, with a low around 34. West southwest wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday
A 20 percent chance of rain after noon. Mostly sunny, with a high near 55. Breezy, with a west southwest wind 14 to 22 mph, with gusts as high as 33 mph.
Tuesday Night
Partly cloudy, with a low around 35. West wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 30 mph.
Wednesday
Rain and snow likely, mainly after noon. Mostly cloudy, with a high near 53. Breezy.
Wednesday Night
Rain and snow likely, becoming all snow after midnight. Mostly cloudy, with a low around 27.
Thursday
Snow. Mostly cloudy, with a high near 40. Breezy.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 19.
Friday
A chance of snow. Partly sunny, with a high near 41.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Windham MT
 47.07°N 110.27°W (Elev. 4918 ft)
Last Update:
10:22 am MDT Apr 11, 2026
Forecast Valid:
12pm MDT Apr 11, 2026-6pm MDT Apr 17, 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