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

Another Round of Heavy Rain and Mountain Snow in California; Snow in the Great Lakes and Northeast

Another round of heavy rainfall will renew concerns for additional flash flooding and landslides in southern California around burn scars and coastal mountain ranges. A low pressure system is bringing enhanced snowfall downwind from the lower Great Lakes into the Northeast mountain ranges. Above average temperatures will challenge or break daily record high temperatures across the southern Plains. Read More >

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

34°F

1°C

Humidity 96%
Wind Speed WSW 0 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 17 Nov 09:30 AM MST
Extended Forecast for

15 Miles ENE Big Sky MT

  • Today

    Today: A slight chance of snow between 10am and 11am. Mostly cloudy, with a high near 34. West southwest wind around 9 mph. Chance of precipitation is 20%.

    High: 34 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Tonight

    Tonight: A 20 percent chance of snow between 11pm and midnight. Mostly cloudy, with a low around 28. Southwest wind 8 to 10 mph.

    Low: 28 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 32. Southwest wind 6 to 8 mph.

    High: 32 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 26. Southwest wind 6 to 9 mph.

    Low: 26 °F

    Slight Chance
    Snow

  • Wednesday

    Wednesday: A 40 percent chance of snow. Partly sunny, with a high near 30. West wind around 8 mph. New snow accumulation of less than a half inch possible.

    High: 30 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23. South southwest wind 6 to 10 mph.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 31. South southwest wind 8 to 10 mph.

    High: 31 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 22. Southwest wind 7 to 10 mph.

    Low: 22 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 32.

    High: 32 °F

    Sunny

Detailed Forecast

Today
A slight chance of snow between 10am and 11am. Mostly cloudy, with a high near 34. West southwest wind around 9 mph. Chance of precipitation is 20%.
Tonight
A 20 percent chance of snow between 11pm and midnight. Mostly cloudy, with a low around 28. Southwest wind 8 to 10 mph.
Tuesday
Partly sunny, with a high near 32. Southwest wind 6 to 8 mph.
Tuesday Night
A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 26. Southwest wind 6 to 9 mph.
Wednesday
A 40 percent chance of snow. Partly sunny, with a high near 30. West wind around 8 mph. New snow accumulation of less than a half inch possible.
Wednesday Night
Partly cloudy, with a low around 23. South southwest wind 6 to 10 mph.
Thursday
Sunny, with a high near 31. South southwest wind 8 to 10 mph.
Thursday Night
Partly cloudy, with a low around 22. Southwest wind 7 to 10 mph.
Friday
Sunny, with a high near 32.
Friday Night
A slight chance of snow after 11pm. Partly cloudy, with a low around 23.
Saturday
A chance of snow. Partly sunny, with a high near 28.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 23.
Sunday
A chance of snow. Partly sunny, with a high near 26.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles ENE Big Sky MT
 45.32°N 111.05°W (Elev. 8901 ft)
Last Update:
3:38 am MST Nov 17, 2025
Forecast Valid:
9am MST Nov 17, 2025-6pm MST Nov 23, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation