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

Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

WEST FORK (WSFM8)

Lat: 45.81556°NLon: 114.25833°WElev: 4420.0ft.

NA

22°F

-6°C

Humidity 83%
Wind Speed SW 1 MPH
Barometer NA
Dewpoint 18°F (-8°C)
Visibility NA
Last update 30 Dec 02:14 AM MST
Extended Forecast for

16 Miles WSW Darby MT

Air Stagnation Advisory until January 1, 01:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory until January 1, 01:00pm

    NOW until 1:00pm Thu

    Air Stagnation Advisory

  • Overnight

    Low: 18 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 34. South wind around 6 mph.

    High: 34 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 25. South southwest wind 6 to 8 mph.

    Low: 25 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 36. South southwest wind 6 to 8 mph.

    High: 36 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25. South wind around 7 mph.

    Low: 25 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: A 40 percent chance of snow, mainly after 11am. Mostly cloudy, with a high near 33. New snow accumulation of less than a half inch possible.

    High: 33 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow. Cloudy, with a low around 28. New snow accumulation of less than one inch possible.

    Low: 28 °F

    Chance Snow

  • Friday

    Friday: Snow likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 34.

    High: 34 °F

    Snow Likely
    then Chance
    Rain/Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 18. Southwest wind around 6 mph.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 34. South wind around 6 mph.
Tuesday Night
Mostly clear, with a low around 25. South southwest wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 36. South southwest wind 6 to 8 mph.
Wednesday Night
Mostly cloudy, with a low around 25. South wind around 7 mph.
New Year's Day
A 40 percent chance of snow, mainly after 11am. Mostly cloudy, with a high near 33. New snow accumulation of less than a half inch possible.
Thursday Night
A 40 percent chance of snow. Cloudy, with a low around 28. New snow accumulation of less than one inch possible.
Friday
Snow likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 34.
Friday Night
A chance of rain and snow before 11pm, then a chance of snow. Mostly cloudy, with a low around 30.
Saturday
Snow. Mostly cloudy, with a high near 32.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 22.
Sunday
Snow likely. Mostly cloudy, with a high near 28.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 20.
Monday
A chance of snow. Partly sunny, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
16 Miles WSW Darby MT
 45.93°N 114.48°W (Elev. 6798 ft)
Last Update:
1:03 am MST Dec 30, 2025
Forecast Valid:
2am MST Dec 30, 2025-6pm MST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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