Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Current conditions at

Ravalli County Airport (KHRF)

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

Mist

34°F

1°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.84 in (1010.5 mb)
Dewpoint 34°F (1°C)
Visibility 1.75 mi
Last update 24 Dec 01:55 AM MST
Extended Forecast for

Hamilton MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 30. South southeast wind around 6 mph.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 46. Southeast wind 6 to 8 mph.

    High: 46 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 2am.  Cloudy, with a low around 33. South wind 5 to 7 mph becoming calm  after midnight.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 33 °F

    Rain Likely

  • Christmas Day

    Christmas Day: A 40 percent chance of rain, mainly before 11am.  Partly sunny, with a high near 46. Calm wind becoming south around 6 mph in the afternoon.

    High: 46 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain before 5am, then a chance of rain and snow.  Mostly cloudy, with a low around 31. South wind around 8 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 31 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Friday

    Friday: Rain likely, possibly mixed with snow, becoming all rain after 2pm.  Mostly cloudy, with a high near 42. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 42 °F

    Rain/Snow
    Likely

  • Friday Night

    Friday Night: Rain and snow likely, becoming all snow after 8pm.  Mostly cloudy, with a low around 25. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Saturday

    Saturday: A chance of snow before 11am.  Partly sunny, with a high near 33.

    High: 33 °F

    Chance Snow
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 30. South southeast wind around 6 mph.
Wednesday
Mostly cloudy, with a high near 46. Southeast wind 6 to 8 mph.
Wednesday Night
Rain likely, mainly before 2am. Cloudy, with a low around 33. South wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Christmas Day
A 40 percent chance of rain, mainly before 11am. Partly sunny, with a high near 46. Calm wind becoming south around 6 mph in the afternoon.
Thursday Night
A chance of rain before 5am, then a chance of rain and snow. Mostly cloudy, with a low around 31. South wind around 8 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Friday
Rain likely, possibly mixed with snow, becoming all rain after 2pm. Mostly cloudy, with a high near 42. Chance of precipitation is 70%. Little or no snow accumulation expected.
Friday Night
Rain and snow likely, becoming all snow after 8pm. Mostly cloudy, with a low around 25. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Saturday
A chance of snow before 11am. Partly sunny, with a high near 33.
Saturday Night
Mostly cloudy, with a low around 17.
Sunday
Partly sunny, with a high near 35.
Sunday Night
Partly cloudy, with a low around 19.
Monday
Mostly sunny, with a high near 41.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Partly sunny, with a high near 45.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Hamilton MT
 46.26°N 114.15°W (Elev. 3599 ft)
1:02 am MST Dec 24, 2025
2am MST Dec 24, 2025-6pm MST Dec 30, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database