Showers and Storms continue across the East; Heat, Critical Fire Weather, Drought, and Poor Air Quality continues in the West

A series of fronts will focus locally heavy showers and storms across portions of the central and eastern U.S. through the end of the workweek. Dangerous to extreme heat continues across the Southwest U.S., eventually spreading eastward over the weekend into early next week. Elevated fire weather conditions continue across the Great Basin, with degraded air quality lingering across the Northwest. Read More >

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

NA

N/A

Humidity NA
Wind Speed SW 0 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

6 Miles ESE Big Sky MT

  • Tonight

    Tonight: Areas of smoke. Mostly clear, with a low around 43. Light and variable wind.

    Low: 43 °F

    Areas Smoke

  • Wednesday

    Wednesday: Areas of smoke. Sunny, with a high near 76. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 76 °F

    Areas Smoke

  • Wednesday Night

    Wednesday Night: Patchy smoke. Mostly clear, with a low around 48. West wind around 6 mph becoming calm  in the evening. Winds could gust as high as 18 mph.

    Low: 48 °F

    Patchy Smoke

  • Thursday

    Thursday: Sunny, with a high near 83. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. West wind 5 to 10 mph becoming light and variable  in the evening. Winds could gust as high as 21 mph.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85. Light and variable wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53. West wind 8 to 13 mph becoming light southwest  in the evening. Winds could gust as high as 23 mph.

    Low: 53 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 85. Light and variable wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Tonight
Areas of smoke. Mostly clear, with a low around 43. Light and variable wind.
Wednesday
Areas of smoke. Sunny, with a high near 76. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Patchy smoke. Mostly clear, with a low around 48. West wind around 6 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Thursday
Sunny, with a high near 83. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.
Thursday Night
Mostly clear, with a low around 51. West wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 21 mph.
Friday
Sunny, with a high near 85. Light and variable wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 23 mph.
Friday Night
Mostly clear, with a low around 53. West wind 8 to 13 mph becoming light southwest in the evening. Winds could gust as high as 23 mph.
Saturday
Sunny, with a high near 85. Light and variable wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 53.
Monday
Sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ESE Big Sky MT
 45.24°N 111.22°W (Elev. 7129 ft)
3:56 pm MDT Aug 4, 2026
9pm MDT Aug 4, 2026-6pm MDT Aug 11, 2026
 
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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