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

Hazardous Weather Conditions

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

33°F

1°C

Humidity 100%
Wind Speed NW 7 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Wind Chill27°F (-3°C)
Last update 31 Mar 03:15 PM MDT
Extended Forecast for

13 Miles ESE Big Sky MT

Winter Storm Watch April 2, 12:00pm until April 3, 12:00pm
Click here for hazard details and duration
Winter Storm Watch

  • This Afternoon

    This Afternoon: Snow showers. Some thunder is also possible. High near 34. South southwest wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 2 inches possible.

    High: 34 °F

    Snow Showers

  • Tonight

    Tonight: Snow, mainly before 8pm. The snow could be heavy at times. Low around 26. West wind 9 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 26 °F

    Heavy Snow
    then Chance
    Snow

  • Wednesday

    Wednesday: Snow likely before 3pm, then snow showers, mainly after 3pm. Some thunder is also possible. High near 36. West southwest wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 36 °F

    Chance Snow
    then Snow
    Showers

  • Wednesday Night

    Wednesday Night: Snow. Low around 28. Breezy, with a south wind 17 to 23 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 28 °F

    Snow and
    Breezy

  • Thursday

    Thursday: Snow. The snow could be heavy at times. High near 30. Breezy, with a south wind 21 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 6 inches possible.

    High: 30 °F

    Heavy Snow
    and Breezy

  • Thursday Night

    Thursday Night: Snow. The snow could be heavy at times. Low around 19. West northwest wind around 21 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    Low: 19 °F

    Heavy Snow

  • Friday

    Friday: Snow likely, mainly before noon. Mostly cloudy, with a high near 26. West northwest wind 16 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 26 °F

    Snow Likely
    then Chance
    Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around 19. West northwest wind 9 to 14 mph becoming southwest after midnight. Winds could gust as high as 26 mph.

    Low: 19 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 38.

    High: 38 °F

    Sunny

Detailed Forecast

This Afternoon
Snow showers. Some thunder is also possible. High near 34. South southwest wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
Snow, mainly before 8pm. The snow could be heavy at times. Low around 26. West wind 9 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday
Snow likely before 3pm, then snow showers, mainly after 3pm. Some thunder is also possible. High near 36. West southwest wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Wednesday Night
Snow. Low around 28. Breezy, with a south wind 17 to 23 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday
Snow. The snow could be heavy at times. High near 30. Breezy, with a south wind 21 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 6 inches possible.
Thursday Night
Snow. The snow could be heavy at times. Low around 19. West northwest wind around 21 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Friday
Snow likely, mainly before noon. Mostly cloudy, with a high near 26. West northwest wind 16 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Friday Night
Partly cloudy, with a low around 19. West northwest wind 9 to 14 mph becoming southwest after midnight. Winds could gust as high as 26 mph.
Saturday
Sunny, with a high near 38.
Saturday Night
Mostly clear, with a low around 23.
Sunday
Sunny, with a high near 43.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Mostly sunny, with a high near 45.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
Mostly sunny, with a high near 47.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
13 Miles ESE Big Sky MT
 45.23°N 111.07°W (Elev. 9354 ft)
Last Update:
12:56 pm MDT Mar 31, 2026
Forecast Valid:
3pm MDT Mar 31, 2026-6pm MDT Apr 7, 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