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

Coastal Storm Along the East Coast; Pacific Storm System in the West on Friday

A strengthening coastal storm will bring soaking rains to portions of the Mid-Atlantic and Northeast, with accumulating snow likely across the higher elevations of northern New England through Friday. A Pacific storm system will bring heavy low elevation rain, and gusty winds to northern California and the Pacific Northwest, as well as possible blizzard conditions to the Sierra Nevada on Friday. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

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

NA

25°F

-4°C

Humidity NA
Wind Speed E 0 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

12 Miles W Marysville MT

  • Today

    Today: Partly sunny, with a high near 46. Southwest wind 6 to 15 mph.

    High: 46 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 35. South wind 9 to 16 mph.

    Low: 35 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 43. South wind 10 to 16 mph, with gusts as high as 20 mph.

    High: 43 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 35. South wind 11 to 18 mph, with gusts as high as 22 mph.

    Low: 35 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 37. South wind 14 to 16 mph becoming west in the afternoon. Winds could gust as high as 24 mph.

    High: 37 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 46. Southwest wind 6 to 15 mph.
Tonight
Mostly cloudy, with a low around 35. South wind 9 to 16 mph.
Friday
Partly sunny, with a high near 43. South wind 10 to 16 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 35. South wind 11 to 18 mph, with gusts as high as 22 mph.
Saturday
Mostly sunny, with a high near 37. South wind 14 to 16 mph becoming west in the afternoon. Winds could gust as high as 24 mph.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Mostly sunny, with a high near 37.
Sunday Night
Partly cloudy, with a low around 29.
Monday
Partly sunny, with a high near 36.
Monday Night
A chance of snow. Mostly cloudy, with a low around 29.
Tuesday
A chance of snow. Mostly cloudy, with a high near 32.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 27.
Wednesday
A chance of snow. Mostly cloudy, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles W Marysville MT
 46.77°N 112.54°W (Elev. 8199 ft)
Last Update:
1:01 am MST Nov 12, 2026
Forecast Valid:
6am MST Nov 12, 2026-6pm MST Nov 18, 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