Storm Impacting the Southwest U.S.

A slow moving weather disturbance will continue to bring periodic rain showers, a few isolated thunderstorms, and a localized flash flooding across the Southwest. The threat will expand into the Southern Plains Wednesday night. Moderate to heavy snow across the Sierra Nevada and southern Utah Ranges will continue into the overnight period. Read More >

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

46°F

8°C

Humidity 49%
Wind Speed ESE 4 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Wind Chill44°F (7°C)
Last update 18 Nov 06:30 PM MST
Extended Forecast for

12 Miles NE Big Sky MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 30. Light south wind.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow before 1pm, then a slight chance of snow after 3pm.  Mostly cloudy, with a high near 39. Light and variable wind.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 39 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 28. Light and variable wind.

    Low: 28 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 42. Light south wind.

    High: 42 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27. Calm wind.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 44. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 44 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27. South southwest wind 3 to 5 mph.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 41. South southwest wind 5 to 7 mph.

    High: 41 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 30. Light south wind.
Wednesday
A chance of snow before 1pm, then a slight chance of snow after 3pm. Mostly cloudy, with a high near 39. Light and variable wind. Chance of precipitation is 30%. Little or no snow accumulation expected.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 28. Light and variable wind.
Thursday
Sunny, with a high near 42. Light south wind.
Thursday Night
Mostly clear, with a low around 27. Calm wind.
Friday
Sunny, with a high near 44. Calm wind becoming west southwest around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 27. South southwest wind 3 to 5 mph.
Saturday
Mostly sunny, with a high near 41. South southwest wind 5 to 7 mph.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
A slight chance of snow. Partly sunny, with a high near 42.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 31.
Monday
A chance of snow. Partly sunny, with a high near 40.
Monday Night
A chance of snow. Mostly cloudy, with a low around 20.
Tuesday
A chance of snow. Mostly cloudy, with a high near 27.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NE Big Sky MT
 45.36°N 111.12°W (Elev. 7451 ft)
1:32 pm MST Nov 18, 2025
6pm MST Nov 18, 2025-6pm MST Nov 25, 2025
 
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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