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

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

EW9980 West Yellowstone (E9980)

Lat: 44.78167°NLon: 111.13833°WElev: 6565.0ft.

NA

41°F

5°C

Humidity 66%
Wind Speed SE 3 MPH
Barometer 29.8 in (1009.14 mb)
Dewpoint 30°F (-1°C)
Visibility NA
Last update 25 Dec 02:46 PM MST
Extended Forecast for

14 Miles NNW West Yellowstone MT

Winter Weather Advisory December 26, 02:00am until December 26, 06:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Christmas Day

    Christmas Day: A 40 percent chance of snow, mainly between 4pm and 5pm. Mostly cloudy, with a high near 33. South southwest wind around 11 mph, with gusts as high as 24 mph. Total daytime snow accumulation of less than a half inch possible.

    High: 33 °F

    Chance Snow

  • Tonight

    Tonight: Snow likely, mainly between 10pm and 5am. Cloudy, with a low around 27. South southwest wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    Low: 27 °F

    Snow Likely

  • Friday

    Friday: Snow, mainly before 1pm. Temperature falling to around 23 by 5pm. Southwest wind 16 to 20 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 28 °F⇓

    Snow

  • Friday Night

    Friday Night: Snow likely, mainly after 11pm. Mostly cloudy, with a low around 15. South southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Low: 15 °F

    Snow Likely

  • Saturday

    Saturday: Snow. High near 20. Southwest wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 20 °F

    Snow

  • Saturday Night

    Saturday Night: A 20 percent chance of snow before 11pm. Partly cloudy, with a low around -4. Northwest wind 3 to 7 mph.

    Low: -4 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 11. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 11 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -1. Light south wind.

    Low: -1 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 16.

    High: 16 °F

    Sunny

Detailed Forecast

Christmas Day
A 40 percent chance of snow, mainly between 4pm and 5pm. Mostly cloudy, with a high near 33. South southwest wind around 11 mph, with gusts as high as 24 mph. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow likely, mainly between 10pm and 5am. Cloudy, with a low around 27. South southwest wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Friday
Snow, mainly before 1pm. Temperature falling to around 23 by 5pm. Southwest wind 16 to 20 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Friday Night
Snow likely, mainly after 11pm. Mostly cloudy, with a low around 15. South southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Saturday
Snow. High near 20. Southwest wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Saturday Night
A 20 percent chance of snow before 11pm. Partly cloudy, with a low around -4. Northwest wind 3 to 7 mph.
Sunday
Sunny, with a high near 11. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around -1. Light south wind.
Monday
Sunny, with a high near 16.
Monday Night
Partly cloudy, with a low around 7.
Tuesday
Mostly cloudy, with a high near 21.
Tuesday Night
Mostly cloudy, with a low around 13.
Wednesday
Partly sunny, with a high near 24.
Wednesday Night
Mostly cloudy, with a low around 16.
New Year's Day
A slight chance of snow. Mostly cloudy, with a high near 27.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
14 Miles NNW West Yellowstone MT
 44.86°N 111.19°W (Elev. 8199 ft)
Last Update:
1:27 pm MST Dec 25, 2025
Forecast Valid:
3pm MST Dec 25, 2025-6pm MST Jan 1, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation