Severe Thunderstorms Likely in the Central U.S.; Flooding Possible for portions of Oklahoma/Texas/Arkansas and the Marianas.

Severe thunderstorms are likely from the southern Plains to the Midwest through Friday. Large hail, damaging winds, and tornadoes are all possible. An Enhanced (level 3 of 5) risk is in effect. Flash flooding is possible across portions of Oklahoma, Texas, and Arkansas on Friday. A Slight (level 2 of 4) risk is in effect. Flooding rain may impact Guam and the Marianas through next week. Read More >

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 75%
Wind Speed SSE 5 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Wind Chill28°F (-2°C)
Last update 05 Mar 12:15 PM MST
Extended Forecast for

12 Miles NE Big Sky MT

Winter Storm Warning March 5, 12:40pm until March 5, 03:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning March 5, 12:40pm until March 5, 03:00pm

    NOW until 3:00pm Thu

    Winter Storm Warning

  • This Afternoon

    High: 31 °F

    Heavy Snow

  • Tonight

    Tonight: Snow, mainly before 1am. The snow could be heavy at times.  Low around 21. Northwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    Low: 21 °F

    Heavy Snow

  • Friday

    Friday: A chance of snow before 10am, then a slight chance of snow after 1pm.  Mostly cloudy, with a high near 34. Calm wind becoming northwest around 5 mph in the afternoon.  Chance of precipitation is 30%. New snow accumulation of less than one inch possible.

    High: 34 °F

    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 20. Light and variable wind.

    Low: 20 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow.  Mostly cloudy, with a high near 43. South southwest wind 5 to 9 mph, with gusts as high as 22 mph.

    High: 43 °F

    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 31. South southwest wind around 7 mph, with gusts as high as 21 mph.

    Low: 31 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 49. Southwest wind 7 to 11 mph, with gusts as high as 29 mph.

    High: 49 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of rain before 8pm, then a slight chance of rain and snow between 8pm and 11pm, then a chance of snow after 11pm.  Mostly cloudy, with a low around 33. Southwest wind 9 to 13 mph, with gusts as high as 31 mph.

    Low: 33 °F

    Chance
    Rain/Snow
    then Chance
    Snow

Detailed Forecast

This Afternoon
Snow. The snow could be heavy at times. High near 31. Northwest wind around 6 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 9 to 13 inches possible.
Tonight
Snow, mainly before 1am. The snow could be heavy at times. Low around 21. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Friday
A chance of snow before 10am, then a slight chance of snow after 1pm. Mostly cloudy, with a high near 34. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 30%. New snow accumulation of less than one inch possible.
Friday Night
Mostly cloudy, with a low around 20. Light and variable wind.
Saturday
A 20 percent chance of snow. Mostly cloudy, with a high near 43. South southwest wind 5 to 9 mph, with gusts as high as 22 mph.
Saturday Night
Mostly cloudy, with a low around 31. South southwest wind around 7 mph, with gusts as high as 21 mph.
Sunday
Mostly sunny, with a high near 49. Southwest wind 7 to 11 mph, with gusts as high as 29 mph.
Sunday Night
A slight chance of rain before 8pm, then a slight chance of rain and snow between 8pm and 11pm, then a chance of snow after 11pm. Mostly cloudy, with a low around 33. Southwest wind 9 to 13 mph, with gusts as high as 31 mph.
Monday
Snow likely, mainly after 11am. Mostly cloudy, with a high near 46.
Monday Night
Snow likely, mainly before 11pm. Mostly cloudy, with a low around 21.
Tuesday
Snow likely. Mostly cloudy, with a high near 33.
Tuesday Night
A slight chance of snow. Mostly cloudy, with a low around 15.
Wednesday
A chance of snow. Partly sunny, with a high near 37.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NE Big Sky MT
 45.39°N 111.19°W (Elev. 6998 ft)
11:47 am MST Mar 5, 2026
12pm MST Mar 5, 2026-6pm MDT Mar 11, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database