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 >

Current conditions at

Yellowstone Club - Base Area (YCBAS)

Lat: 45.23924°NLon: 111.41476°WElev: 7200.0ft.

NA

20°F

-7°C

Humidity 87%
Wind Speed W 3 MPH
Barometer NA
Dewpoint 17°F (-8°C)
Visibility NA
Last update 01 Jan 08:00 AM MST
Extended Forecast for

Big Sky MT

  • New Year's Day

    New Year's Day: A 20 percent chance of snow after 4pm. Mostly cloudy, with a high near 41. East wind 6 to 8 mph becoming south southeast in the afternoon.

    High: 41 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Tonight

    Tonight: Snow likely, mainly between 11pm and 5am. Cloudy, with a low around 30. East southeast wind around 6 mph becoming west southwest after midnight. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 30 °F

    Snow Likely

  • Friday

    Friday: Snow likely before 11am, then a slight chance of rain and snow between 11am and 2pm, then a chance of rain after 2pm. Patchy fog between 8am and 11am. Otherwise, mostly cloudy, with a high near 43. West southwest wind 6 to 8 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Rain/Snow
    Likely and
    Patchy Fog
    then Chance
    Rain/Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 32. South southwest wind 3 to 8 mph.

    Low: 32 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 10 percent chance of rain after 5pm. Partly sunny, with a high near 44. South wind 3 to 7 mph. Winds could gust as high as 23 mph.

    High: 44 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A slight chance of rain and snow before 8pm, then a chance of snow. Mostly cloudy, with a low around 31. South wind 3 to 7 mph. Winds could gust as high as 20 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 31 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Sunday

    Sunday: A 30 percent chance of snow. Partly sunny, with a high near 43. South wind 3 to 7 mph. Winds could gust as high as 22 mph. Little or no snow accumulation expected.

    High: 43 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A slight chance of snow. Mostly cloudy, with a low around 30. South wind around 6 mph becoming calm in the evening.

    Low: 30 °F

    Slight Chance
    Snow

  • Monday

    Monday: A chance of snow. Mostly cloudy, with a high near 42.

    High: 42 °F

    Chance Snow

Detailed Forecast

New Year's Day
A 20 percent chance of snow after 4pm. Mostly cloudy, with a high near 41. East wind 6 to 8 mph becoming south southeast in the afternoon.
Tonight
Snow likely, mainly between 11pm and 5am. Cloudy, with a low around 30. East southeast wind around 6 mph becoming west southwest after midnight. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Friday
Snow likely before 11am, then a slight chance of rain and snow between 11am and 2pm, then a chance of rain after 2pm. Patchy fog between 8am and 11am. Otherwise, mostly cloudy, with a high near 43. West southwest wind 6 to 8 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday Night
Mostly cloudy, with a low around 32. South southwest wind 3 to 8 mph.
Saturday
A 10 percent chance of rain after 5pm. Partly sunny, with a high near 44. South wind 3 to 7 mph. Winds could gust as high as 23 mph.
Saturday Night
A slight chance of rain and snow before 8pm, then a chance of snow. Mostly cloudy, with a low around 31. South wind 3 to 7 mph. Winds could gust as high as 20 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Sunday
A 30 percent chance of snow. Partly sunny, with a high near 43. South wind 3 to 7 mph. Winds could gust as high as 22 mph. Little or no snow accumulation expected.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 30. South wind around 6 mph becoming calm in the evening.
Monday
A chance of snow. Mostly cloudy, with a high near 42.
Monday Night
A chance of snow, mainly before 11pm. Mostly cloudy, with a low around 25.
Tuesday
A slight chance of snow. Partly sunny, with a high near 37.
Tuesday Night
Mostly cloudy, with a low around 22.
Wednesday
A slight chance of snow. Partly sunny, with a high near 36.
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ABOUT THIS FORECAST

 
Point Forecast:
Big Sky MT
 45.28°N 111.32°W (Elev. 6752 ft)
Last Update:
3:32 am MST Jan 1, 2026
Forecast Valid:
9am MST Jan 1, 2026-6pm MST Jan 7, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation