Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

USCRN SITE NEAR LEWISTOWN 42WSW (JRWM8)

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

NA

64°F

18°C

Humidity 19%
Wind Speed NA 9 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Last update 20 Mar 08:00 PM MDT
Extended Forecast for

6 Miles WSW Windham MT

High Wind Warning March 20, 08:20pm until March 21, 06:00am
Click here for hazard details and duration
High Wind Warning
  •  
    High Wind Warning March 20, 08:20pm until March 21, 06:00am

    NOW until 6:00am Sat

    High Wind Warning

  • Tonight

    Low: 46 °F

    Mostly Clear
    then Slight
    Chance Rain

  • Saturday

    Saturday: Rain, mainly before 5pm.  Temperature rising to near 54 by 10am, then falling to around 46 during the remainder of the day. Southwest wind 5 to 10 mph becoming northwest 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °F

    Rain Likely
    then Rain

  • Saturday Night

    Saturday Night: A chance of rain and snow before 11pm, then a slight chance of snow between 11pm and midnight.  Partly cloudy, with a low around 28. West wind 15 to 20 mph decreasing to 5 to 10 mph in the evening. Winds could gust as high as 28 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 28 °F

    Chance
    Rain/Snow
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 53. West wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 53 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 31. Southwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 28 mph.

    Low: 31 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 55. Southwest wind 6 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 55 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34. West northwest wind 7 to 10 mph becoming southwest after midnight.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 62. South southwest wind 7 to 16 mph, with gusts as high as 26 mph.

    High: 62 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of rain after 5am. Partly cloudy, with a low around 46. Southwest wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 29 mph.
Saturday
Rain, mainly before 5pm. Temperature rising to near 54 by 10am, then falling to around 46 during the remainder of the day. Southwest wind 5 to 10 mph becoming northwest 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
A chance of rain and snow before 11pm, then a slight chance of snow between 11pm and midnight. Partly cloudy, with a low around 28. West wind 15 to 20 mph decreasing to 5 to 10 mph in the evening. Winds could gust as high as 28 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Sunday
Sunny, with a high near 53. West wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 32 mph.
Sunday Night
Partly cloudy, with a low around 31. Southwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 28 mph.
Monday
Partly sunny, with a high near 55. Southwest wind 6 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph.
Monday Night
Mostly cloudy, with a low around 34. West northwest wind 7 to 10 mph becoming southwest after midnight.
Tuesday
Mostly cloudy, with a high near 62. South southwest wind 7 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
A slight chance of rain before midnight. Mostly cloudy, with a low around 46.
Wednesday
Partly sunny, with a high near 67. Windy.
Wednesday Night
Partly cloudy, with a low around 28. Breezy.
Thursday
A slight chance of snow. Mostly sunny, with a high near 43. Breezy.
Thursday Night
Mostly clear, with a low around 23.
Friday
Sunny, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Windham MT
 47.07°N 110.27°W (Elev. 4918 ft)
7:46 pm MDT Mar 20, 2026
8pm MDT Mar 20, 2026-6pm MDT Mar 27, 2026
 
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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