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

Garrison I-90 MP 174.4 (MTGAR)

Lat: 46.52361°NLon: 112.80843°WElev: 4327.0ft.

NA

50°F

10°C

Humidity 48%
Wind Speed NW 2 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 13 Apr 12:30 PM MDT
Extended Forecast for

12 Miles W Marysville MT

  • This Afternoon

    This Afternoon: A 40 percent chance of snow after 4pm.  Partly sunny, with a high near 34. Breezy, with a west wind 22 to 25 mph, with gusts as high as 31 mph.  Total daytime snow accumulation of less than a half inch possible.

    High: 34 °F

    Chance Snow
    and Breezy

  • Tonight

    Tonight: A slight chance of snow between 11pm and midnight.  Mostly cloudy, with a low around 27. Breezy, with a west wind 25 to 29 mph, with gusts as high as 32 mph.  Chance of precipitation is 20%.

    Low: 27 °F

    Breezy.
    Slight Chance
    Snow then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 36. Windy, with a west wind 25 to 30 mph, with gusts as high as 36 mph.

    High: 36 °F

    Partly Sunny
    and Windy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow after midnight.  Mostly cloudy, with a low around 28. Windy, with a west southwest wind 25 to 31 mph, with gusts as high as 34 mph.

    Low: 28 °F

    Mostly Cloudy
    and Windy
    then Slight
    Chance Snow
    and Breezy

  • Wednesday

    Wednesday: Snow, mainly after noon.  High near 35. Breezy, with a west southwest wind around 24 mph, with gusts as high as 31 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 35 °F

    Breezy.
    Chance Snow
    then Snow

  • Wednesday Night

    Wednesday Night: Snow.  Low around 19. Windy.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 19 °F

    Snow and
    Breezy then
    Snow Likely
    and Windy

  • Thursday

    Thursday: Snow.  High near 21. Breezy.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 21 °F

    Snow and
    Breezy

  • Thursday Night

    Thursday Night: Snow likely, mainly before midnight.  Mostly cloudy, with a low around 16. Blustery.

    Low: 16 °F

    Snow Likely
    and Blustery

  • Friday

    Friday: Snow.  Mostly cloudy, with a high near 26. Blustery.

    High: 26 °F

    Snow and
    Blustery

Detailed Forecast

This Afternoon
A 40 percent chance of snow after 4pm. Partly sunny, with a high near 34. Breezy, with a west wind 22 to 25 mph, with gusts as high as 31 mph. Total daytime snow accumulation of less than a half inch possible.
Tonight
A slight chance of snow between 11pm and midnight. Mostly cloudy, with a low around 27. Breezy, with a west wind 25 to 29 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 36. Windy, with a west wind 25 to 30 mph, with gusts as high as 36 mph.
Tuesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 28. Windy, with a west southwest wind 25 to 31 mph, with gusts as high as 34 mph.
Wednesday
Snow, mainly after noon. High near 35. Breezy, with a west southwest wind around 24 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow. Low around 19. Windy. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Thursday
Snow. High near 21. Breezy. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 16. Blustery.
Friday
Snow. Mostly cloudy, with a high near 26. Blustery.
Friday Night
A chance of snow before midnight. Partly cloudy, with a low around 17. Blustery.
Saturday
Sunny, with a high near 36.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
A slight chance of rain and snow. Mostly sunny, with a high near 43.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles W Marysville MT
 46.77°N 112.54°W (Elev. 8199 ft)
12:22 pm MDT Apr 13, 2026
12pm MDT Apr 13, 2026-6pm MDT Apr 19, 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