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

Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

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

NA

40°F

4°C

Humidity 71%
Wind Speed WNW 5 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Wind Chill36°F (2°C)
Last update 15 Apr 02:01 AM MDT
Extended Forecast for

6 Miles E Elliston MT

Winter Weather Advisory April 15, 06:00pm until April 16, 09:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: Mostly cloudy, with a low around 31. West southwest wind 11 to 14 mph, with gusts as high as 23 mph.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain and snow showers. Some thunder is also possible. High near 44. Breezy, with a west southwest wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 44 °F

    Chance Snow
    Showers then
    Rain/Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: Snow showers before 11pm, then a chance of snow showers after midnight. The snow could be heavy at times. Low around 19. West wind 13 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: 19 °F

    Heavy Snow
    then Chance
    Snow Showers

  • Thursday

    Thursday: Snow showers. High near 28. West northwest wind 11 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 28 °F

    Snow Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 19. West northwest wind 10 to 18 mph, with gusts as high as 29 mph. New snow accumulation of less than a half inch possible.

    Low: 19 °F

    Chance Snow
    Showers

  • Friday

    Friday: Snow showers, mainly after noon. High near 32. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 32 °F

    Chance Snow
    Showers then
    Snow Showers

  • Friday Night

    Friday Night: A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 19.

    Low: 19 °F

    Slight Chance
    Snow Showers
    then Mostly
    Clear

  • Saturday

    Saturday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Saturday Night

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

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 31. West southwest wind 11 to 14 mph, with gusts as high as 23 mph.
Wednesday
Rain and snow showers. Some thunder is also possible. High near 44. Breezy, with a west southwest wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday Night
Snow showers before 11pm, then a chance of snow showers after midnight. The snow could be heavy at times. Low around 19. West wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday
Snow showers. High near 28. West northwest wind 11 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
A 40 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 19. West northwest wind 10 to 18 mph, with gusts as high as 29 mph. New snow accumulation of less than a half inch possible.
Friday
Snow showers, mainly after noon. High near 32. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Friday Night
A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 19.
Saturday
Sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 33.
Monday
A slight chance of rain and snow. Snow level 7000 feet rising to 7900 feet in the afternoon. Mostly sunny, with a high near 56.
Monday Night
A slight chance of rain and snow. Partly cloudy, with a low around 36.
Tuesday
A chance of rain and snow. Mostly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles E Elliston MT
 46.56°N 112.32°W (Elev. 6168 ft)
Last Update:
2:01 am MDT Apr 15, 2026
Forecast Valid:
2am MDT Apr 15, 2026-6pm MDT Apr 21, 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