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

Fire Weather Concerns; Record Warmth Spreads

The Plains to the mid-Mississippi Valley continue with warm and dry conditions. Any fires that initiate could spread quickly. The warm temperatures will expand across the Southern Plains into the Southwest where numerous records are expected through the weekend. Meanwhile, a cold front will move southward across the northern Plains and Great Lakes region where some snow will develop this weekend. Read More >

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

33°F

1°C

Humidity 61%
Wind Speed ENE 0 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Last update 28 Feb 10:45 PM MST
Extended Forecast for

12 Miles NE Big Sky MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 48. Light and variable wind.

    High: 48 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of snow after 3am. Mostly cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Monday

    Monday: A 40 percent chance of snow, mainly after 11am. Mostly cloudy, with a high near 45. Calm wind. Little or no snow accumulation expected.

    High: 45 °F

    Chance Snow

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25. Calm wind.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 49. Light southwest wind.

    High: 49 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32. South wind around 6 mph.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow after 11am. Mostly cloudy, with a high near 46. South wind 6 to 8 mph, with gusts as high as 23 mph.

    High: 46 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Snow. Cloudy, with a low around 26.

    Low: 26 °F

    Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 27. Calm wind.
Sunday
Partly sunny, with a high near 48. Light and variable wind.
Sunday Night
A 20 percent chance of snow after 3am. Mostly cloudy, with a low around 29. Calm wind.
Monday
A 40 percent chance of snow, mainly after 11am. Mostly cloudy, with a high near 45. Calm wind. Little or no snow accumulation expected.
Monday Night
Partly cloudy, with a low around 25. Calm wind.
Tuesday
Sunny, with a high near 49. Light southwest wind.
Tuesday Night
Mostly cloudy, with a low around 32. South wind around 6 mph.
Wednesday
A chance of snow after 11am. Mostly cloudy, with a high near 46. South wind 6 to 8 mph, with gusts as high as 23 mph.
Wednesday Night
Snow. Cloudy, with a low around 26.
Thursday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 37.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 21.
Friday
A chance of snow. Mostly cloudy, with a high near 38.
Friday Night
A chance of snow. Mostly cloudy, with a low around 24.
Saturday
A chance of snow. Partly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NE Big Sky MT
 45.39°N 111.19°W (Elev. 6998 ft)
Last Update:
10:17 pm MST Feb 28, 2026
Forecast Valid:
11pm MST Feb 28, 2026-6pm MST Mar 7, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation