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

Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

STILLWATER (STWM8)

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

NA

49°F

9°C

Humidity 78%
Wind Speed ENE 0 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 12 Apr 09:00 PM MDT
Extended Forecast for

21 Miles S Fortine MT

  • Tonight

    Tonight: A slight chance of rain before 2am, then a slight chance of rain and snow after 4am. Snow level 7200 feet lowering to 6200 feet after midnight . Mostly cloudy, with a low around 36. East wind around 6 mph. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    Rain then
    Slight Chance
    Rain/Snow

  • Monday

    Monday: A chance of rain and snow showers before noon, then rain showers likely. Some thunder is also possible. Snow level 6000 feet rising to 7000 feet in the afternoon. Mostly cloudy, with a high near 46. East northeast wind 6 to 11 mph becoming west southwest in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 46 °F

    Chance
    Rain/Snow
    then Showers
    Likely

  • Monday Night

    Monday Night: A chance of rain and snow before midnight. Mostly cloudy, with a low around 32. Southwest wind 11 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 32 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 38. Southwest wind 10 to 14 mph, with gusts as high as 30 mph. Little or no snow accumulation expected.

    High: 38 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: Snow, mainly after midnight. Low around 31. Southwest wind around 14 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 31 °F

    Chance Snow
    then Snow

  • Wednesday

    Wednesday: Snow. High near 36. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 36 °F

    Snow

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 22. New snow accumulation of 1 to 2 inches possible.

    Low: 22 °F

    Chance Snow

  • Thursday

    Thursday: Snow likely. Mostly cloudy, with a high near 35.

    High: 35 °F

    Snow Likely

  • Thursday Night

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

    Low: 22 °F

    Slight Chance
    Snow then
    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of rain before 2am, then a slight chance of rain and snow after 4am. Snow level 7200 feet lowering to 6200 feet after midnight . Mostly cloudy, with a low around 36. East wind around 6 mph. Chance of precipitation is 20%.
Monday
A chance of rain and snow showers before noon, then rain showers likely. Some thunder is also possible. Snow level 6000 feet rising to 7000 feet in the afternoon. Mostly cloudy, with a high near 46. East northeast wind 6 to 11 mph becoming west southwest in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Monday Night
A chance of rain and snow before midnight. Mostly cloudy, with a low around 32. Southwest wind 11 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Tuesday
A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 38. Southwest wind 10 to 14 mph, with gusts as high as 30 mph. Little or no snow accumulation expected.
Tuesday Night
Snow, mainly after midnight. Low around 31. Southwest wind around 14 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Wednesday
Snow. High near 36. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 22. New snow accumulation of 1 to 2 inches possible.
Thursday
Snow likely. Mostly cloudy, with a high near 35.
Thursday Night
A slight chance of snow before midnight. Mostly cloudy, with a low around 22.
Friday
A chance of snow after noon. Mostly sunny, with a high near 40.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Mostly sunny, with a high near 45.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
A slight chance of rain and snow. Mostly sunny, with a high near 48.
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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 Apr 12, 2026
Forecast Valid:
9pm MDT Apr 12, 2026-6pm MDT Apr 19, 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