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

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

Lat: 44.977222°NLon: 110.695278°WElev: 6138.0ft.

NA

39°F

4°C

Humidity 43%
Wind Speed SE 5 MPH
Barometer NA
Dewpoint 18°F (-8°C)
Visibility NA
Wind Chill35°F (2°C)
Last update 01 Jan 02:15 PM MST
Extended Forecast for

17 Miles W Gardiner MT

  • New Year's Day

    New Year's Day: A 30 percent chance of snow showers, mainly after 4pm. Mostly cloudy, with a high near 28. South wind around 14 mph, with gusts as high as 21 mph.

    High: 28 °F

    Chance Snow
    Showers

  • Tonight

    Tonight: A 50 percent chance of snow showers. Mostly cloudy, with a low around 24. South wind 10 to 13 mph, with gusts as high as 20 mph. New snow accumulation of less than one inch possible.

    Low: 24 °F

    Chance Snow
    Showers

  • Friday

    Friday: A 50 percent chance of snow showers, mainly before 10am. Mostly cloudy, with a high near 27. South southwest wind 8 to 13 mph, with gusts as high as 20 mph. New snow accumulation of less than one inch possible.

    High: 27 °F

    Chance Snow
    Showers then
    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 25. Breezy, with a south southwest wind 17 to 22 mph.

    Low: 25 °F

    Mostly Cloudy
    and Breezy

  • Saturday

    Saturday: Partly sunny, with a high near 28. Breezy, with a south wind around 21 mph, with gusts as high as 30 mph.

    High: 28 °F

    Partly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: A 40 percent chance of snow showers. Mostly cloudy, with a low around 25. Breezy, with a south wind around 23 mph, with gusts as high as 28 mph.

    Low: 25 °F

    Chance Snow
    Showers and
    Breezy

  • Sunday

    Sunday: A 50 percent chance of snow showers. Mostly cloudy, with a high near 27. Breezy, with a south southwest wind 18 to 21 mph, with gusts as high as 30 mph.

    High: 27 °F

    Chance Snow
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A 40 percent chance of snow showers. Mostly cloudy, with a low around 23. Breezy.

    Low: 23 °F

    Chance Snow
    Showers and
    Breezy

  • Monday

    Monday: Snow showers likely. Mostly cloudy, with a high near 25. Breezy. Chance of precipitation is 60%.

    High: 25 °F

    Snow Showers
    Likely and
    Breezy

Detailed Forecast

New Year's Day
A 30 percent chance of snow showers, mainly after 4pm. Mostly cloudy, with a high near 28. South wind around 14 mph, with gusts as high as 21 mph.
Tonight
A 50 percent chance of snow showers. Mostly cloudy, with a low around 24. South wind 10 to 13 mph, with gusts as high as 20 mph. New snow accumulation of less than one inch possible.
Friday
A 50 percent chance of snow showers, mainly before 10am. Mostly cloudy, with a high near 27. South southwest wind 8 to 13 mph, with gusts as high as 20 mph. New snow accumulation of less than one inch possible.
Friday Night
Mostly cloudy, with a low around 25. Breezy, with a south southwest wind 17 to 22 mph.
Saturday
Partly sunny, with a high near 28. Breezy, with a south wind around 21 mph, with gusts as high as 30 mph.
Saturday Night
A 40 percent chance of snow showers. Mostly cloudy, with a low around 25. Breezy, with a south wind around 23 mph, with gusts as high as 28 mph.
Sunday
A 50 percent chance of snow showers. Mostly cloudy, with a high near 27. Breezy, with a south southwest wind 18 to 21 mph, with gusts as high as 30 mph.
Sunday Night
A 40 percent chance of snow showers. Mostly cloudy, with a low around 23. Breezy.
Monday
Snow showers likely. Mostly cloudy, with a high near 25. Breezy. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 18. Breezy.
Tuesday
A chance of snow showers. Partly sunny, with a high near 21. Breezy.
Tuesday Night
A slight chance of snow showers. Mostly cloudy, with a low around 17. Breezy.
Wednesday
A chance of snow showers. Partly sunny, with a high near 20. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles W Gardiner MT
 45.08°N 111.07°W (Elev. 9426 ft)
Last Update:
2:03 pm MST Jan 1, 2026
Forecast Valid:
2pm MST Jan 1, 2026-6pm MST Jan 7, 2026
 
Forecast Discussion
 
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Additional Resources

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