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

Severe Thunderstorms into Sunday; Atmospheric River Impacting the Pacific Northwest

Severe thunderstorms will bring sporadic reports of damaging winds and a few tornadoes through Sunday across a broad portion of the Mid-Atlantic and Southeast U.S. A weak atmospheric river is forecast to impact Oregon and northern California on Sunday bringing rain, mountain snow, and gusty winds. Read More >

Current conditions at

Ravalli County Airport (KHRF)

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

light snow,mist

34°F

1°C

Humidity 93%
Wind Speed SSW 6 MPH
Barometer 29.6 in (1002.37 mb)
Dewpoint 32°F (0°C)
Visibility 4.00 mi
Wind Chill29°F (-2°C)
Last update 16 Mar 04:35 AM MDT
Extended Forecast for

Hamilton MT

  • Overnight

    Overnight: Snow likely. Mostly cloudy, with a low around 27. South wind around 15 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 27 °F

    Snow Likely

  • Sunday

    Sunday: Rain and snow, becoming all rain after 9am. High near 45. South southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 45 °F

    Rain/Snow
    then Rain

  • Sunday Night

    Sunday Night: Rain before 10pm, then rain and snow between 10pm and 3am, then snow likely after 3am. Low around 27. South southwest wind 6 to 15 mph becoming north northwest in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 27 °F

    Rain/Snow
    then
    Rain/Snow
    Likely

  • Monday

    Monday: A 50 percent chance of snow. Partly sunny, with a high near 43. Calm wind becoming west northwest 5 to 7 mph in the afternoon. Little or no snow accumulation expected.

    High: 43 °F

    Chance Snow

  • Monday Night

    Monday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 21. Northwest wind 5 to 7 mph becoming calm in the evening. Little or no snow accumulation expected.

    Low: 21 °F

    Chance Snow

  • Tuesday

    Tuesday: Snow likely, mainly after noon. Mostly cloudy, with a high near 37. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Snow Likely

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain and snow between midnight and 3am, then a slight chance of snow after 3am. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

Detailed Forecast

Overnight
Snow likely. Mostly cloudy, with a low around 27. South wind around 15 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.
Sunday
Rain and snow, becoming all rain after 9am. High near 45. South southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Sunday Night
Rain before 10pm, then rain and snow between 10pm and 3am, then snow likely after 3am. Low around 27. South southwest wind 6 to 15 mph becoming north northwest in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Monday
A 50 percent chance of snow. Partly sunny, with a high near 43. Calm wind becoming west northwest 5 to 7 mph in the afternoon. Little or no snow accumulation expected.
Monday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 21. Northwest wind 5 to 7 mph becoming calm in the evening. Little or no snow accumulation expected.
Tuesday
Snow likely, mainly after noon. Mostly cloudy, with a high near 37. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Tuesday Night
Partly cloudy, with a low around 15.
Wednesday
Mostly sunny, with a high near 45.
Wednesday Night
A slight chance of rain and snow between midnight and 3am, then a slight chance of snow after 3am. Mostly cloudy, with a low around 26.
Thursday
Snow. Mostly cloudy, with a high near 41.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 24.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 44.
Friday Night
Rain and snow. Mostly cloudy, with a low around 27.
Saturday
Snow likely. Mostly cloudy, with a high near 40.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Hamilton MT
 46.26°N 114.15°W (Elev. 3598 ft)
Last Update:
3:30 am MDT Mar 16, 2025
Forecast Valid:
5am MDT Mar 16, 2025-6pm MDT Mar 22, 2025
 
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