Severe Weather for Northeast Southeastward into the Southern Plains; Flooding in the Upper Great Lakes

Severe thunderstorms are expected from the Northeast to Texas through the night and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains and the mid-Atlantic. There is late-season snow over the Northern/Central Rockies and the Northern Plains. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

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

NA

28°F

-2°C

Humidity 80%
Wind Speed NE 0 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Last update 17 Apr 12:30 AM MDT
Extended Forecast for

12 Miles W Marysville MT

  • Overnight

    Overnight: A 30 percent chance of snow, mainly before 3am.  Mostly cloudy, with a low around 16. Wind chill values as low as -1. Blustery, with a west wind 23 to 25 mph, with gusts as high as 29 mph.  Total nighttime snow accumulation of 2 to 4 inches possible.

    Low: 16 °F

    Chance Snow
    and Blustery

  • Friday

    Friday: Snow likely.  Mostly cloudy, with a high near 25. Wind chill values as low as -2. Breezy, with a west wind 23 to 26 mph, with gusts as high as 31 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 25 °F

    Breezy.
    Chance Snow
    then Snow
    Likely

  • Friday Night

    Friday Night: A 20 percent chance of snow before 9pm.  Partly cloudy, with a low around 18. Blustery, with a west wind 17 to 24 mph, with gusts as high as 29 mph.

    Low: 18 °F

    Slight Chance
    Snow and
    Blustery then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 38. West southwest wind 18 to 21 mph, with gusts as high as 26 mph.

    High: 38 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 26. Southwest wind 14 to 21 mph, with gusts as high as 25 mph.

    Low: 26 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of snow, mainly before 3am. Mostly cloudy, with a low around 16. Wind chill values as low as -1. Blustery, with a west wind 23 to 25 mph, with gusts as high as 29 mph. Total nighttime snow accumulation of 2 to 4 inches possible.
Friday
Snow likely. Mostly cloudy, with a high near 25. Wind chill values as low as -2. Breezy, with a west wind 23 to 26 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Friday Night
A 20 percent chance of snow before 9pm. Partly cloudy, with a low around 18. Blustery, with a west wind 17 to 24 mph, with gusts as high as 29 mph.
Saturday
Sunny, with a high near 38. West southwest wind 18 to 21 mph, with gusts as high as 26 mph.
Saturday Night
Mostly clear, with a low around 26. Southwest wind 14 to 21 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
Mostly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
A slight chance of rain after noon. Snow level 8600 feet rising to 9300 feet in the afternoon. Mostly sunny, with a high near 56.
Tuesday Night
A chance of rain. Snow level 9500 feet lowering to 8700 feet after midnight . Mostly cloudy, with a low around 38.
Wednesday
Rain and snow likely. Mostly cloudy, with a high near 47. Breezy.
Wednesday Night
Rain and snow likely. Mostly cloudy, with a low around 31.
Thursday
Snow likely. Mostly cloudy, with a high near 35.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles W Marysville MT
 46.77°N 112.54°W (Elev. 8199 ft)
12:21 am MDT Apr 17, 2026
12am MDT Apr 17, 2026-6pm MDT Apr 23, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database