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

Critical Fire Weather and Severe Thunderstorm Threats This Week

Gusty winds and low relative humidity will contribute to critical fire weather Monday over parts of the central and southern High Plains. Scattered to widespread severe thunderstorms may bring damaging winds, large hail, and tornadoes Monday through Thursday over the lower Mississippi River Valley and southern Plains into the Midwest and Ohio Valley. Read More >

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

45°F

7°C

Humidity 37%
Wind Speed ESE 11 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility NA
Wind Chill39°F (4°C)
Last update 09 Mar 01:15 AM MDT
Extended Forecast for

13 Miles ESE Big Sky MT

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 29. Windy, with a southwest wind around 30 mph, with gusts as high as 43 mph.

    Low: 29 °F

    Partly Cloudy
    and Windy

  • Monday

    Monday: A 30 percent chance of snow, mainly between 10am and 5pm. Partly sunny, with a high near 30. Windy, with a west wind 30 to 32 mph, with gusts as high as 49 mph. New snow accumulation of less than a half inch possible.

    High: 30 °F

    Chance Snow
    and Windy

  • Monday Night

    Monday Night: A slight chance of snow before 11pm, then a slight chance of snow after 4am. Mostly cloudy, with a low around 14. Wind chill values as low as zero. Breezy, with a west southwest wind 23 to 28 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 20%.

    Low: 14 °F

    Slight Chance
    Snow and
    Breezy

  • Tuesday

    Tuesday: Snow likely, mainly after noon. Mostly cloudy, with a high near 17. Wind chill values as low as -5. Blustery, with a west northwest wind 13 to 18 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 17 °F

    Snow Likely
    and Blustery

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 8. Blustery, with a west southwest wind 17 to 25 mph, with gusts as high as 36 mph.

    Low: 8 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 27. Windy, with a southwest wind 21 to 30 mph, with gusts as high as 45 mph.

    High: 27 °F

    Mostly Sunny
    and Windy

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 25. Windy, with a southwest wind 33 to 36 mph, with gusts as high as 50 mph. Little or no snow accumulation expected.

    Low: 25 °F

    Chance Snow
    and Windy

  • Thursday

    Thursday: Snow likely, mainly after noon. Mostly cloudy, with a high near 35. Windy, with a southwest wind 37 to 41 mph, with gusts as high as 60 mph.

    High: 35 °F

    Snow Likely
    and Windy

  • Thursday Night

    Thursday Night: A chance of snow. Cloudy, with a low around 31. Windy.

    Low: 31 °F

    Chance Snow
    and Windy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 29. Windy, with a southwest wind around 30 mph, with gusts as high as 43 mph.
Monday
A 30 percent chance of snow, mainly between 10am and 5pm. Partly sunny, with a high near 30. Windy, with a west wind 30 to 32 mph, with gusts as high as 49 mph. New snow accumulation of less than a half inch possible.
Monday Night
A slight chance of snow before 11pm, then a slight chance of snow after 4am. Mostly cloudy, with a low around 14. Wind chill values as low as zero. Breezy, with a west southwest wind 23 to 28 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 20%.
Tuesday
Snow likely, mainly after noon. Mostly cloudy, with a high near 17. Wind chill values as low as -5. Blustery, with a west northwest wind 13 to 18 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Tuesday Night
Partly cloudy, with a low around 8. Blustery, with a west southwest wind 17 to 25 mph, with gusts as high as 36 mph.
Wednesday
Mostly sunny, with a high near 27. Windy, with a southwest wind 21 to 30 mph, with gusts as high as 45 mph.
Wednesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 25. Windy, with a southwest wind 33 to 36 mph, with gusts as high as 50 mph. Little or no snow accumulation expected.
Thursday
Snow likely, mainly after noon. Mostly cloudy, with a high near 35. Windy, with a southwest wind 37 to 41 mph, with gusts as high as 60 mph.
Thursday Night
A chance of snow. Cloudy, with a low around 31. Windy.
Friday
A chance of snow. Mostly cloudy, with a high near 35. Breezy.
Friday Night
A chance of snow. Cloudy, with a low around 32. Breezy.
Saturday
Snow. Mostly cloudy, with a high near 36. Breezy.
Saturday Night
Snow likely. Mostly cloudy, with a low around 22. Breezy.
Sunday
Snow likely. Mostly cloudy, with a high near 28.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles ESE Big Sky MT
 45.23°N 111.07°W (Elev. 9354 ft)
Last Update:
12:31 am MDT Mar 9, 2026
Forecast Valid:
1am MDT Mar 9, 2026-6pm MDT Mar 15, 2026
 
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