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 >

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

Lat: 45.34534°NLon: 111.17261°WElev: 5699.0ft.

unknown precip

35°F

2°C

Humidity 100%
Wind Speed SSE 3 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 02 Jan 05:00 PM MST
Extended Forecast for

13 Miles ESE Big Sky MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 24. Breezy, with a southwest wind 18 to 23 mph, with gusts as high as 29 mph.

    Low: 24 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 30. Breezy, with a south southwest wind 23 to 25 mph, with gusts as high as 37 mph.

    High: 30 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 25. Breezy, with a south southwest wind 25 to 28 mph, with gusts as high as 36 mph. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Snow
    and Breezy

  • Sunday

    Sunday: A 40 percent chance of snow. Partly sunny, with a high near 28. Breezy, with a south southwest wind around 25 mph, with gusts as high as 38 mph. New snow accumulation of less than a half inch possible.

    High: 28 °F

    Chance Snow
    and Breezy

  • Sunday Night

    Sunday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 24. Breezy, with a south southwest wind 21 to 25 mph, with gusts as high as 34 mph. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Chance Snow
    and Breezy

  • Monday

    Monday: A 40 percent chance of snow. Partly sunny, with a high near 25. Southwest wind around 21 mph, with gusts as high as 31 mph. New snow accumulation of less than a half inch possible.

    High: 25 °F

    Chance Snow

  • Monday Night

    Monday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 20. Breezy, with a southwest wind 20 to 22 mph, with gusts as high as 30 mph.

    Low: 20 °F

    Slight Chance
    Snow and
    Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 22. Breezy, with a southwest wind 22 to 24 mph, with gusts as high as 37 mph.

    High: 22 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of snow after 11pm. Mostly cloudy, with a low around 19. Breezy.

    Low: 19 °F

    Slight Chance
    Snow and
    Breezy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 24. Breezy, with a southwest wind 18 to 23 mph, with gusts as high as 29 mph.
Saturday
Mostly sunny, with a high near 30. Breezy, with a south southwest wind 23 to 25 mph, with gusts as high as 37 mph.
Saturday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 25. Breezy, with a south southwest wind 25 to 28 mph, with gusts as high as 36 mph. New snow accumulation of less than a half inch possible.
Sunday
A 40 percent chance of snow. Partly sunny, with a high near 28. Breezy, with a south southwest wind around 25 mph, with gusts as high as 38 mph. New snow accumulation of less than a half inch possible.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 24. Breezy, with a south southwest wind 21 to 25 mph, with gusts as high as 34 mph. New snow accumulation of less than a half inch possible.
Monday
A 40 percent chance of snow. Partly sunny, with a high near 25. Southwest wind around 21 mph, with gusts as high as 31 mph. New snow accumulation of less than a half inch possible.
Monday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 20. Breezy, with a southwest wind 20 to 22 mph, with gusts as high as 30 mph.
Tuesday
Partly sunny, with a high near 22. Breezy, with a southwest wind 22 to 24 mph, with gusts as high as 37 mph.
Tuesday Night
A slight chance of snow after 11pm. Mostly cloudy, with a low around 19. Breezy.
Wednesday
A chance of snow. Mostly cloudy, with a high near 20. Breezy.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 9.
Thursday
A chance of snow. Partly sunny, with a high near 14.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 3.
Friday
A slight chance of snow. Mostly sunny, with a high near 14.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles ESE Big Sky MT
 45.23°N 111.07°W (Elev. 9354 ft)
Last Update:
3:38 pm MST Jan 2, 2026
Forecast Valid:
5pm MST Jan 2, 2026-6pm MST Jan 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation