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

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

32°F

0°C

Humidity 80%
Wind Speed W 0 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 02 May 12:30 AM MDT
Extended Forecast for

6 Miles ESE Big Sky MT

  • Overnight

    Overnight: Mostly clear, with a low around 34. Light south southeast wind.

    Low: 34 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 60. Calm wind becoming west southwest 5 to 9 mph in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 37. West wind around 6 mph becoming calm in the evening.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain after noon. Mostly sunny, with a high near 59. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 59 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. North northwest wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of rain before noon, then a chance of rain and snow between noon and 3pm, then a chance of rain after 3pm. Mostly sunny, with a high near 53. Calm wind becoming north 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 53 °F

    Slight Chance
    Rain then
    Chance
    Rain/Snow

  • Monday Night

    Monday Night: A slight chance of rain and snow before midnight. Partly cloudy, with a low around 29. North wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Rain/Snow
    then Partly
    Cloudy

  • Tuesday

    Tuesday: A chance of snow. Partly sunny, with a high near 44. Light north wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 22 mph.

    High: 44 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 34. Light south southeast wind.
Saturday
Mostly sunny, with a high near 60. Calm wind becoming west southwest 5 to 9 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 37. West wind around 6 mph becoming calm in the evening.
Sunday
A 20 percent chance of rain after noon. Mostly sunny, with a high near 59. Calm wind becoming northwest around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 37. North northwest wind around 5 mph becoming calm in the evening.
Monday
A slight chance of rain before noon, then a chance of rain and snow between noon and 3pm, then a chance of rain after 3pm. Mostly sunny, with a high near 53. Calm wind becoming north 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Monday Night
A slight chance of rain and snow before midnight. Partly cloudy, with a low around 29. North wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 20%.
Tuesday
A chance of snow. Partly sunny, with a high near 44. Light north wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 27.
Wednesday
Sunny, with a high near 55.
Wednesday Night
Partly cloudy, with a low around 37.
Thursday
A slight chance of rain. Mostly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 40.
Friday
A slight chance of rain. Mostly sunny, with a high near 63.
Basemap Options
Click map to change the forecast location
Loading map...
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:
12:31 am MDT May 2, 2026
Forecast Valid:
12am MDT May 2, 2026-6pm MDT May 8, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation