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

42°F

6°C

Humidity 95%
Wind Speed N 0 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 13 Apr 04:00 AM MDT
Extended Forecast for

10 Miles E Fortine MT

  • Overnight

    Overnight: A slight chance of rain and snow showers after 5am. Snow level 6500 feet. Mostly cloudy, with a low around 31. West wind around 8 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Slight Chance
    Rain/Snow

  • Monday

    Monday: Rain and snow showers likely before 4pm, then rain showers likely between 4pm and 5pm, then rain likely, possibly mixed with snow showers after 5pm. Some thunder is also possible. Snow level 6300 feet rising to 7100 feet in the afternoon. Mostly cloudy, with a high near 39. West southwest wind 7 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 39 °F

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

  • Monday Night

    Monday Night: Rain and snow showers likely before 11pm, then a chance of snow showers between 11pm and 2am. Mostly cloudy, with a low around 28. West southwest wind around 18 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Low: 28 °F

    Rain/Snow
    Likely then
    Chance Snow
    Showers

  • Tuesday

    Tuesday: A 50 percent chance of snow showers. Mostly cloudy, with a high near 31. Breezy, with a southwest wind 18 to 22 mph, with gusts as high as 40 mph. New snow accumulation of less than a half inch possible.

    High: 31 °F

    Chance Snow
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Snow showers. Low around 27. Breezy, with a southwest wind 22 to 24 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 27 °F

    Snow Showers
    and Breezy

  • Wednesday

    Wednesday: Snow showers. High near 30. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 30 °F

    Snow Showers

  • Wednesday Night

    Wednesday Night: Snow showers. The snow could be heavy at times. Low around 20. Chance of precipitation is 80%. New snow accumulation of 4 to 8 inches possible.

    Low: 20 °F

    Heavy Snow

  • Thursday

    Thursday: Snow showers. Mostly cloudy, with a high near 28.

    High: 28 °F

    Snow Showers

  • Thursday Night

    Thursday Night: A chance of snow, mainly before midnight. Partly cloudy, with a low around 18.

    Low: 18 °F

    Chance Snow

Detailed Forecast

Overnight
A slight chance of rain and snow showers after 5am. Snow level 6500 feet. Mostly cloudy, with a low around 31. West wind around 8 mph. Chance of precipitation is 20%.
Monday
Rain and snow showers likely before 4pm, then rain showers likely between 4pm and 5pm, then rain likely, possibly mixed with snow showers after 5pm. Some thunder is also possible. Snow level 6300 feet rising to 7100 feet in the afternoon. Mostly cloudy, with a high near 39. West southwest wind 7 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Monday Night
Rain and snow showers likely before 11pm, then a chance of snow showers between 11pm and 2am. Mostly cloudy, with a low around 28. West southwest wind around 18 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Tuesday
A 50 percent chance of snow showers. Mostly cloudy, with a high near 31. Breezy, with a southwest wind 18 to 22 mph, with gusts as high as 40 mph. New snow accumulation of less than a half inch possible.
Tuesday Night
Snow showers. Low around 27. Breezy, with a southwest wind 22 to 24 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday
Snow showers. High near 30. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Wednesday Night
Snow showers. The snow could be heavy at times. Low around 20. Chance of precipitation is 80%. New snow accumulation of 4 to 8 inches possible.
Thursday
Snow showers. Mostly cloudy, with a high near 28.
Thursday Night
A chance of snow, mainly before midnight. Partly cloudy, with a low around 18.
Friday
A chance of snow, mainly after noon. Mostly sunny, with a high near 33.
Friday Night
A slight chance of snow. Partly cloudy, with a low around 21.
Saturday
Mostly sunny, with a high near 38.
Saturday Night
A slight chance of snow. Partly cloudy, with a low around 27.
Sunday
A chance of snow. Partly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles E Fortine MT
 48.79°N 114.69°W (Elev. 6188 ft)
Last Update:
2:01 am MDT Apr 13, 2026
Forecast Valid:
4am MDT Apr 13, 2026-6pm MDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

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Chance of Precipitation