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

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 >

Hazardous Weather Conditions

Current conditions at

STILLWATER (STWM8)

Lat: 48.53944°NLon: 114.55944°WElev: 3116.0ft.

NA

41°F

5°C

Humidity 64%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 21 Mar 08:00 PM MDT
Extended Forecast for

21 Miles S Fortine MT

Flood Watch March 21, 08:28pm until March 22, 12:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch March 21, 08:28pm until March 22, 12:00pm

    NOW until 12:00pm Sun

    Flood Watch

  • Tonight

    Low: 23 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 38. West southwest wind 9 to 14 mph, with gusts as high as 28 mph.

    High: 38 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 25. West southwest wind 6 to 13 mph, with gusts as high as 25 mph.

    Low: 25 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 45. South wind 6 to 8 mph, with gusts as high as 20 mph.

    High: 45 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32. West southwest wind 6 to 9 mph, with gusts as high as 18 mph.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Snow, mainly after noon. High near 40. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Chance Snow
    then Snow

  • Tuesday Night

    Tuesday Night: Rain and snow, mainly before midnight. Snow level 6000 feet. Low around 32. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 32 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: A chance of snow. Partly sunny, with a high near 40.

    High: 40 °F

    Chance Snow

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming clear, with a low around 23. Southwest wind 9 to 16 mph, with gusts as high as 36 mph.
Sunday
Sunny, with a high near 38. West southwest wind 9 to 14 mph, with gusts as high as 28 mph.
Sunday Night
Partly cloudy, with a low around 25. West southwest wind 6 to 13 mph, with gusts as high as 25 mph.
Monday
Mostly sunny, with a high near 45. South wind 6 to 8 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 32. West southwest wind 6 to 9 mph, with gusts as high as 18 mph.
Tuesday
Snow, mainly after noon. High near 40. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain and snow, mainly before midnight. Snow level 6000 feet. Low around 32. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday
A chance of snow. Partly sunny, with a high near 40.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 24.
Thursday
A slight chance of snow. Mostly sunny, with a high near 37.
Thursday Night
Mostly clear, with a low around 22.
Friday
Sunny, with a high near 42.
Friday Night
Mostly clear, with a low around 23.
Saturday
Mostly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
21 Miles S Fortine MT
 48.46°N 114.9°W (Elev. 5902 ft)
Last Update:
2:01 pm MDT Mar 21, 2026
Forecast Valid:
8pm MDT Mar 21, 2026-6pm MDT Mar 28, 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