Heavy Rain Across the Southern US; Unsettled Pattern in the Pacific Northwest

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains Friday, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. High elevation snow and mixed precipitation and rain in the lower elevations will impact the Pacific Northwest this weekend before a stronger system moves in early 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

18°F

-8°C

Humidity 97%
Wind Speed NW 4 MPH
Barometer NA
Dewpoint 17°F (-8°C)
Visibility NA
Wind Chill12°F (-11°C)
Last update 13 Feb 03:45 AM MST
Extended Forecast for

6 Miles ESE Big Sky MT

  • Today

    Today: Sunny, with a high near 36. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 36 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 23. South southeast wind 3 to 5 mph.

    Low: 23 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 37. South wind 5 to 9 mph, with gusts as high as 20 mph.

    High: 37 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 28. South wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 28 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of snow after 11am.  Mostly cloudy, with a high near 40. South wind 5 to 10 mph, with gusts as high as 23 mph.

    High: 40 °F

    Slight Chance
    Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 25. South southwest wind 5 to 8 mph, with gusts as high as 20 mph.

    Low: 25 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: A 30 percent chance of snow after 11am.  Partly sunny, with a high near 40. South wind 5 to 11 mph, with gusts as high as 24 mph.  New snow accumulation of less than a half inch possible.

    High: 40 °F

    Chance Snow

  • Monday Night

    Monday Night: Snow likely, mainly after 11pm.  Mostly cloudy, with a low around 28. South southeast wind 5 to 9 mph, with gusts as high as 18 mph.

    Low: 28 °F

    Snow Likely

  • Tuesday

    Tuesday: Snow.  Mostly cloudy, with a high near 34.

    High: 34 °F

    Snow

Detailed Forecast

Today
Sunny, with a high near 36. Calm wind becoming south southwest around 6 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 23. South southeast wind 3 to 5 mph.
Saturday
Mostly cloudy, with a high near 37. South wind 5 to 9 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 28. South wind 6 to 8 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of snow after 11am. Mostly cloudy, with a high near 40. South wind 5 to 10 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 25. South southwest wind 5 to 8 mph, with gusts as high as 20 mph.
Washington's Birthday
A 30 percent chance of snow after 11am. Partly sunny, with a high near 40. South wind 5 to 11 mph, with gusts as high as 24 mph. New snow accumulation of less than a half inch possible.
Monday Night
Snow likely, mainly after 11pm. Mostly cloudy, with a low around 28. South southeast wind 5 to 9 mph, with gusts as high as 18 mph.
Tuesday
Snow. Mostly cloudy, with a high near 34.
Tuesday Night
Snow likely. Mostly cloudy, with a low around 18.
Wednesday
Snow likely. Mostly cloudy, with a high near 29.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 16.
Thursday
A chance of snow. Mostly cloudy, with a high near 27.
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)
11:52 pm MST Feb 12, 2026
4am MST Feb 13, 2026-6pm MST Feb 19, 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