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

Heavy Rain in the Southern U.S.; Active Weather Continues in Alaska

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains today, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. Another Bering system will impact the Alaskan West Coast and Central Interior through the weekend bringing moderate to heavy snow, high winds, and/or some blizzard conditions. 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 64%
Wind Speed ESE 5 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Wind Chill29°F (-2°C)
Last update 14 Feb 11:45 PM MST
Extended Forecast for

13 Miles ESE Big Sky MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 21. Breezy, with a south southwest wind around 24 mph, with gusts as high as 30 mph.

    Low: 21 °F

    Mostly Cloudy
    and Breezy

  • Sunday

    Sunday: A 20 percent chance of snow after 4pm. Mostly sunny, with a high near 30. Breezy, with a southwest wind 22 to 24 mph, with gusts as high as 37 mph.

    High: 30 °F

    Breezy.
    Mostly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 23. Breezy, with a southwest wind around 24 mph, with gusts as high as 31 mph.

    Low: 23 °F

    Breezy.
    Slight Chance
    Snow then
    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 30. Windy, with a south wind 23 to 30 mph, with gusts as high as 45 mph.

    High: 30 °F

    Mostly Sunny
    and Windy

  • Monday Night

    Monday Night: Snow likely, mainly after 11pm. Mostly cloudy, with a low around 24. Windy, with a south wind 25 to 31 mph, with gusts as high as 43 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 24 °F

    Snow Likely
    and Windy

  • Tuesday

    Tuesday: Snow. High near 26. Breezy, with a south wind around 26 mph becoming west southwest in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 26 °F

    Snow and
    Breezy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 13. Breezy, with a south southwest wind 21 to 25 mph, with gusts as high as 36 mph. New snow accumulation of less than one inch possible.

    Low: 13 °F

    Chance Snow
    and Breezy

  • Wednesday

    Wednesday: Snow, mainly after 11am. Mostly cloudy, with a high near 19. South wind 15 to 20 mph, with gusts as high as 25 mph.

    High: 19 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow. Mostly cloudy, with a low around 7.

    Low: 7 °F

    Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 21. Breezy, with a south southwest wind around 24 mph, with gusts as high as 30 mph.
Sunday
A 20 percent chance of snow after 4pm. Mostly sunny, with a high near 30. Breezy, with a southwest wind 22 to 24 mph, with gusts as high as 37 mph.
Sunday Night
A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 23. Breezy, with a southwest wind around 24 mph, with gusts as high as 31 mph.
Washington's Birthday
Mostly sunny, with a high near 30. Windy, with a south wind 23 to 30 mph, with gusts as high as 45 mph.
Monday Night
Snow likely, mainly after 11pm. Mostly cloudy, with a low around 24. Windy, with a south wind 25 to 31 mph, with gusts as high as 43 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Tuesday
Snow. High near 26. Breezy, with a south wind around 26 mph becoming west southwest in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 13. Breezy, with a south southwest wind 21 to 25 mph, with gusts as high as 36 mph. New snow accumulation of less than one inch possible.
Wednesday
Snow, mainly after 11am. Mostly cloudy, with a high near 19. South wind 15 to 20 mph, with gusts as high as 25 mph.
Wednesday Night
Snow. Mostly cloudy, with a low around 7.
Thursday
Snow likely, mainly after 11am. Mostly cloudy, with a high near 12.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 4.
Friday
A chance of snow. Partly sunny, with a high near 13.
Friday Night
A chance of snow. Mostly cloudy, with a low around 5. Breezy.
Saturday
A chance of snow. Partly sunny, with a high near 18. Breezy.
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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:
11:32 pm MST Feb 14, 2026
Forecast Valid:
2am MST Feb 15, 2026-6pm MST Feb 21, 2026
 
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Additional Resources

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Chance of Precipitation