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

37°F

3°C

Humidity 40%
Wind Speed ESE 9 MPH
Barometer NA
Dewpoint 15°F (-9°C)
Visibility NA
Wind Chill30°F (-1°C)
Last update 28 Feb 09:30 AM MST
Extended Forecast for

6 Miles ESE Big Sky MT

  • Today

    Today: Increasing clouds, with a high near 43. West southwest wind 3 to 6 mph.

    High: 43 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. Light south southeast wind.

    Low: 27 °F

    Mostly Cloudy

  • Sunday

    Sunday: Increasing clouds, with a high near 45. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 45 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A 30 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 30. Light south wind. Little or no snow accumulation expected.

    Low: 30 °F

    Chance Snow

  • Monday

    Monday: A 40 percent chance of snow. Mostly cloudy, with a high near 44. Light and variable wind. Little or no snow accumulation expected.

    High: 44 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly clear, with a low around 25. Calm wind.

    Low: 25 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 46. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 46 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31. South wind around 6 mph.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow, mainly after 11am. Mostly cloudy, with a high near 42.

    High: 42 °F

    Chance Snow

Detailed Forecast

Today
Increasing clouds, with a high near 43. West southwest wind 3 to 6 mph.
Tonight
Mostly cloudy, with a low around 27. Light south southeast wind.
Sunday
Increasing clouds, with a high near 45. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
A 30 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 30. Light south wind. Little or no snow accumulation expected.
Monday
A 40 percent chance of snow. Mostly cloudy, with a high near 44. Light and variable wind. Little or no snow accumulation expected.
Monday Night
Mostly clear, with a low around 25. Calm wind.
Tuesday
Sunny, with a high near 46. Calm wind becoming south southwest around 6 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 31. South wind around 6 mph.
Wednesday
A chance of snow, mainly after 11am. Mostly cloudy, with a high near 42.
Wednesday Night
Snow. Cloudy, with a low around 24.
Thursday
A chance of snow. Mostly cloudy, with a high near 34.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 19.
Friday
A slight chance of snow. Mostly sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ESE Big Sky MT
 45.24°N 111.22°W (Elev. 7129 ft)
Last Update:
8:42 am MST Feb 28, 2026
Forecast Valid:
9am MST Feb 28, 2026-6pm MST Mar 6, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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