Critical Fire Weather in the High Plains; Heat Continues in the West

Critical fire weather conditions will persist in the central High Plains through Friday as gusty winds and dry conditions continue. The heat wave across the West and Southwest will continue to intensify through the week, with daily and monthly record highs expected to be broken. Read More >

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

55°F

13°C

Humidity 33%
Wind Speed ENE 1 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 18 Mar 07:15 PM MDT
Extended Forecast for

6 Miles ESE Big Sky MT

  • Tonight

    Tonight: Partly cloudy, with a low around 39. Light and variable wind becoming south southeast 5 to 8 mph after midnight. Winds could gust as high as 20 mph.

    Low: 39 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 60. South southeast wind 6 to 11 mph becoming west southwest in the afternoon. Winds could gust as high as 24 mph.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43. South southwest wind 5 to 7 mph.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 62. South southwest wind 5 to 13 mph, with gusts as high as 25 mph.

    High: 62 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 44. South southwest wind 5 to 8 mph, with gusts as high as 20 mph.

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of rain after noon.  Partly sunny, with a high near 58. South southwest wind 5 to 10 mph, with gusts as high as 22 mph.

    High: 58 °F

    Partly Sunny
    then Chance
    Rain

  • Saturday Night

    Saturday Night: A chance of rain before 3am, then a slight chance of snow.  Mostly cloudy, with a low around 29. West wind 5 to 9 mph becoming calm  in the evening. Winds could gust as high as 20 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 29 °F

    Chance Rain
    then Slight
    Chance
    Rain/Snow

  • Sunday

    Sunday: A slight chance of snow after noon.  Mostly sunny, with a high near 49. Calm wind becoming west around 6 mph in the afternoon.

    High: 49 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 39. Light and variable wind becoming south southeast 5 to 8 mph after midnight. Winds could gust as high as 20 mph.
Thursday
Sunny, with a high near 60. South southeast wind 6 to 11 mph becoming west southwest in the afternoon. Winds could gust as high as 24 mph.
Thursday Night
Partly cloudy, with a low around 43. South southwest wind 5 to 7 mph.
Friday
Mostly sunny, with a high near 62. South southwest wind 5 to 13 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 44. South southwest wind 5 to 8 mph, with gusts as high as 20 mph.
Saturday
A 30 percent chance of rain after noon. Partly sunny, with a high near 58. South southwest wind 5 to 10 mph, with gusts as high as 22 mph.
Saturday Night
A chance of rain before 3am, then a slight chance of snow. Mostly cloudy, with a low around 29. West wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday
A slight chance of snow after noon. Mostly sunny, with a high near 49. Calm wind becoming west around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Partly sunny, with a high near 50.
Monday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 33.
Tuesday
A slight chance of rain. Mostly cloudy, with a high near 54.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 40.
Wednesday
A chance of rain and snow. Partly sunny, with a high near 53.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ESE Big Sky MT
 45.24°N 111.22°W (Elev. 7129 ft)
5:36 pm MDT Mar 18, 2026
7pm MDT Mar 18, 2026-6pm MDT Mar 25, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database