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

Ravalli County Airport (KHRF)

Lat: 46.25463°NLon: 114.1246°WElev: 3644.0ft.

Overcast

43°F

6°C

Humidity 70%
Wind Speed S 12 MPH
Barometer 29.77 in (1008.13 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 15 Apr 04:55 AM MDT
Extended Forecast for

8 Miles SW Hamilton MT

Winter Weather Advisory April 15, 03:00pm until April 16, 09:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: Snow showers. Low around 26. West southwest wind around 21 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 3 inches possible.

    Low: 26 °F

    Snow Showers

  • Wednesday

    Wednesday: Snow showers. Some thunder is also possible. High near 30. Windy, with a west southwest wind 20 to 30 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 30 °F

    Snow Showers
    and Windy

  • Wednesday Night

    Wednesday Night: Snow showers, mainly before midnight. The snow could be heavy at times. Low around 14. Wind chill values as low as -1. Windy, with a west wind 26 to 31 mph decreasing to 17 to 22 mph after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 14 °F

    Heavy Snow
    and Windy
    then Chance
    Snow Showers

  • Thursday

    Thursday: Snow showers. High near 20. Wind chill values as low as -3. Blustery, with a west wind 18 to 23 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 20 °F

    Snow Showers
    and Blustery

  • Thursday Night

    Thursday Night: A 50 percent chance of snow showers. Mostly cloudy, with a low around 17. Windy, with a west southwest wind 25 to 30 mph decreasing to 15 to 20 mph after midnight. Winds could gust as high as 37 mph. New snow accumulation of less than a half inch possible.

    Low: 17 °F

    Chance Snow
    Showers and
    Windy

  • Friday

    Friday: Snow showers likely, mainly after noon. Partly sunny, with a high near 25. Blustery. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 25 °F

    Snow Showers
    Likely and
    Blustery

  • Friday Night

    Friday Night: Mostly clear, with a low around 17. Blustery.

    Low: 17 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Saturday

    Saturday: Sunny, with a high near 36.

    High: 36 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Overnight
Snow showers. Low around 26. West southwest wind around 21 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 3 inches possible.
Wednesday
Snow showers. Some thunder is also possible. High near 30. Windy, with a west southwest wind 20 to 30 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Wednesday Night
Snow showers, mainly before midnight. The snow could be heavy at times. Low around 14. Wind chill values as low as -1. Windy, with a west wind 26 to 31 mph decreasing to 17 to 22 mph after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday
Snow showers. High near 20. Wind chill values as low as -3. Blustery, with a west wind 18 to 23 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 17. Windy, with a west southwest wind 25 to 30 mph decreasing to 15 to 20 mph after midnight. Winds could gust as high as 37 mph. New snow accumulation of less than a half inch possible.
Friday
Snow showers likely, mainly after noon. Partly sunny, with a high near 25. Blustery. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Friday Night
Mostly clear, with a low around 17. Blustery.
Saturday
Sunny, with a high near 36.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
Mostly sunny, with a high near 44.
Sunday Night
Partly cloudy, with a low around 30.
Monday
A slight chance of rain and snow. Mostly sunny, with a high near 46.
Monday Night
A slight chance of rain and snow. Partly cloudy, with a low around 33.
Tuesday
A chance of rain and snow. Partly sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles SW Hamilton MT
 46.16°N 114.28°W (Elev. 8304 ft)
Last Update:
2:01 am MDT Apr 15, 2026
Forecast Valid:
5am MDT Apr 15, 2026-6pm MDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation