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

Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Current conditions at

STILLWATER (STWM8)

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

NA

44°F

7°C

Humidity 92%
Wind Speed SSE 3 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 13 Apr 11:00 AM MDT
Extended Forecast for

6 Miles ESE Fortine MT

  • Today

    Today: A chance of rain and snow showers before 3pm, then rain showers likely. Some thunder is also possible. Snow level 6800 feet. Mostly cloudy, with a high near 40. West southwest wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 40 °F

    Rain/Snow
    Likely

  • Tonight

    Tonight: Rain and snow showers likely before 10pm, then a chance of snow showers between 10pm and 2am. Mostly cloudy, with a low around 29. West southwest wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 29 °F

    Rain/Snow
    Likely then
    Chance Snow
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of snow showers. Mostly cloudy, with a high near 33. Southwest wind 14 to 17 mph, with gusts as high as 28 mph. Little or no snow accumulation expected.

    High: 33 °F

    Chance Snow
    Showers

  • Tuesday Night

    Tuesday Night: Snow showers. Low around 29. Southwest wind 16 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 29 °F

    Snow Showers

  • Wednesday

    Wednesday: Snow showers. High near 31. South southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 31 °F

    Snow Showers

  • Wednesday Night

    Wednesday Night: Snow showers. Low around 22. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.

    Low: 22 °F

    Snow Showers

  • Thursday

    Thursday: Snow showers. High near 29. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    High: 29 °F

    Snow Showers

  • Thursday Night

    Thursday Night: A chance of snow, mainly before midnight. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Chance Snow

  • Friday

    Friday: A chance of snow after noon. Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny
    then Chance
    Snow

Detailed Forecast

Today
A chance of rain and snow showers before 3pm, then rain showers likely. Some thunder is also possible. Snow level 6800 feet. Mostly cloudy, with a high near 40. West southwest wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tonight
Rain and snow showers likely before 10pm, then a chance of snow showers between 10pm and 2am. Mostly cloudy, with a low around 29. West southwest wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday
A 40 percent chance of snow showers. Mostly cloudy, with a high near 33. Southwest wind 14 to 17 mph, with gusts as high as 28 mph. Little or no snow accumulation expected.
Tuesday Night
Snow showers. Low around 29. Southwest wind 16 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday
Snow showers. High near 31. South southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
Snow showers. Low around 22. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.
Thursday
Snow showers. High near 29. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Thursday Night
A chance of snow, mainly before midnight. Mostly cloudy, with a low around 20.
Friday
A chance of snow after noon. Mostly sunny, with a high near 33.
Friday Night
A slight chance of snow before midnight. Partly cloudy, with a low around 24.
Saturday
Mostly sunny, with a high near 39.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around 29.
Sunday
A chance of snow. Partly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ESE Fortine MT
 48.74°N 114.77°W (Elev. 6283 ft)
Last Update:
2:01 am MDT Apr 13, 2026
Forecast Valid:
11am MDT Apr 13, 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