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

Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Current conditions at

Ravalli County Airport (KHRF)

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

Clear

19°F

-7°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 30.5 in (1032.85 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 30 Dec 07:15 AM MST
Extended Forecast for

Hamilton MT

  • Today

    Today: Sunny, with a high near 38. Light and variable wind becoming east around 5 mph.

    High: 38 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 23. South southeast wind around 5 mph.

    Low: 23 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 42. South wind 3 to 5 mph.

    High: 42 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 24. South wind 3 to 5 mph.

    Low: 24 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: A 20 percent chance of rain after 11am. Mostly cloudy, with a high near 42. South wind 3 to 5 mph.

    High: 42 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of rain, mainly before 11am. Mostly cloudy, with a high near 45.

    High: 45 °F

    Chance Rain

  • Friday Night

    Friday Night: A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain

  • Saturday

    Saturday: Rain likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 42.

    High: 42 °F

    Rain Likely
    then Chance
    Rain/Snow

Detailed Forecast

Today
Sunny, with a high near 38. Light and variable wind becoming east around 5 mph.
Tonight
Mostly clear, with a low around 23. South southeast wind around 5 mph.
Wednesday
Mostly sunny, with a high near 42. South wind 3 to 5 mph.
Wednesday Night
Mostly cloudy, with a low around 24. South wind 3 to 5 mph.
New Year's Day
A 20 percent chance of rain after 11am. Mostly cloudy, with a high near 42. South wind 3 to 5 mph.
Thursday Night
Mostly cloudy, with a low around 31.
Friday
A 30 percent chance of rain, mainly before 11am. Mostly cloudy, with a high near 45.
Friday Night
A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 32.
Saturday
Rain likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 42.
Saturday Night
A chance of rain and snow, mainly after 11pm. Mostly cloudy, with a low around 27.
Sunday
A chance of rain and snow. Partly sunny, with a high near 41.
Sunday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 24.
Monday
A slight chance of rain and snow. Partly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hamilton MT
 46.26°N 114.15°W (Elev. 3599 ft)
Last Update:
1:03 am MST Dec 30, 2025
Forecast Valid:
7am MST Dec 30, 2025-6pm MST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation