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

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern 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

38°F

3°C

Humidity 73%
Wind Speed S 3 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 03 Jan 03:15 AM MST
Extended Forecast for

5 Miles ESE Mount Holmes WY

Winter Weather Advisory January 3, 11:00pm until January 5, 11:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: A 20 percent chance of snow showers. Patchy fog. Otherwise, cloudy, with a low around 29. South southwest wind around 13 mph, with gusts as high as 25 mph.

    Low: 29 °F

    Slight Chance
    Snow Showers
    and Patchy
    Fog

  • Saturday

    Saturday: A 30 percent chance of snow showers, mainly after 4pm. Mostly cloudy, with a high near 36. Breezy, with a south southwest wind 11 to 15 mph, with gusts as high as 29 mph.

    High: 36 °F

    Chance Snow
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Snow showers, mainly after 9pm. Patchy fog after 11pm. Low around 27. Breezy, with a southwest wind 16 to 22 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 27 °F

    Snow Showers
    and Patchy
    Fog

  • Sunday

    Sunday: Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 32. Breezy, with a south southwest wind 13 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    High: 32 °F

    Snow Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: A 50 percent chance of snow showers. Mostly cloudy, with a low around 25. South southwest wind around 10 mph, with gusts as high as 24 mph. New snow accumulation of less than one inch possible.

    Low: 25 °F

    Chance Snow
    Showers

  • Monday

    Monday: Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 30. Southwest wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    High: 30 °F

    Snow Showers
    Likely

  • Monday Night

    Monday Night: A 40 percent chance of snow showers. Mostly cloudy, with a low around 21. Southwest wind around 11 mph, with gusts as high as 24 mph.

    Low: 21 °F

    Chance Snow
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of snow showers. Mostly cloudy, with a high near 26. Breezy.

    High: 26 °F

    Chance Snow
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow showers, mainly after 11pm. Mostly cloudy, with a low around 20. Breezy.

    Low: 20 °F

    Chance Snow
    Showers and
    Breezy

Detailed Forecast

Overnight
A 20 percent chance of snow showers. Patchy fog. Otherwise, cloudy, with a low around 29. South southwest wind around 13 mph, with gusts as high as 25 mph.
Saturday
A 30 percent chance of snow showers, mainly after 4pm. Mostly cloudy, with a high near 36. Breezy, with a south southwest wind 11 to 15 mph, with gusts as high as 29 mph.
Saturday Night
Snow showers, mainly after 9pm. Patchy fog after 11pm. Low around 27. Breezy, with a southwest wind 16 to 22 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Sunday
Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 32. Breezy, with a south southwest wind 13 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Sunday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 25. South southwest wind around 10 mph, with gusts as high as 24 mph. New snow accumulation of less than one inch possible.
Monday
Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 30. Southwest wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Monday Night
A 40 percent chance of snow showers. Mostly cloudy, with a low around 21. Southwest wind around 11 mph, with gusts as high as 24 mph.
Tuesday
A 30 percent chance of snow showers. Mostly cloudy, with a high near 26. Breezy.
Tuesday Night
A 30 percent chance of snow showers, mainly after 11pm. Mostly cloudy, with a low around 20. Breezy.
Wednesday
Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 25. Chance of precipitation is 70%.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 5.
Thursday
A chance of snow showers. Partly sunny, with a high near 19.
Thursday Night
A slight chance of snow showers. Mostly cloudy, with a low around 0.
Friday
A slight chance of snow showers. Partly sunny, with a high near 16.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Mount Holmes WY
 44.81°N 110.75°W (Elev. 7641 ft)
Last Update:
2:32 am MST Jan 3, 2026
Forecast Valid:
4am MST Jan 3, 2026-6pm MST Jan 9, 2026
 
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