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

Frigid Airmass to Bring Significantly Colder Temperatures; Snow Continues Downwind of the Great Lakes

A frigid cold airmass will bring significantly colder weather across the eastern two thirds of the country early this week. Record low temperatures are expected in the Southeast by Tuesday morning. Moderate to heavy lake effect snow will continue downwind of the Great Lakes through Monday. Several inches of snow accumulation is expected, including in portions of the Chicago Metro Read More >

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

27°F

-3°C

Humidity 83%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 10 Nov 01:45 AM MST
Extended Forecast for

4 Miles E Big Sky MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 31. South southwest wind around 5 mph.

    Low: 31 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 59. South wind 6 to 9 mph, with gusts as high as 21 mph.

    High: 59 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34. South wind 6 to 9 mph, with gusts as high as 23 mph.

    Low: 34 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 56. West southwest wind around 7 mph.

    High: 56 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 31. South wind around 5 mph.

    Low: 31 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 58. South wind 5 to 7 mph.

    High: 58 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36. South wind around 6 mph.

    Low: 36 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 58. South wind 6 to 11 mph, with gusts as high as 24 mph.

    High: 58 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Rain and snow likely, mainly after 11pm. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Rain/Snow
    Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 31. South southwest wind around 5 mph.
Monday
Partly sunny, with a high near 59. South wind 6 to 9 mph, with gusts as high as 21 mph.
Monday Night
Mostly cloudy, with a low around 34. South wind 6 to 9 mph, with gusts as high as 23 mph.
Veterans Day
Mostly sunny, with a high near 56. West southwest wind around 7 mph.
Tuesday Night
Partly cloudy, with a low around 31. South wind around 5 mph.
Wednesday
Partly sunny, with a high near 58. South wind 5 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 36. South wind around 6 mph.
Thursday
Mostly sunny, with a high near 58. South wind 6 to 11 mph, with gusts as high as 24 mph.
Thursday Night
Rain and snow likely, mainly after 11pm. Mostly cloudy, with a low around 30.
Friday
Rain and snow likely, becoming all snow after 8am. Mostly cloudy, with a high near 42.
Friday Night
A chance of snow. Mostly cloudy, with a low around 19.
Saturday
A slight chance of snow. Mostly sunny, with a high near 40.
Saturday Night
A slight chance of snow. Partly cloudy, with a low around 21.
Sunday
A chance of rain and snow. Partly sunny, with a high near 45.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Big Sky MT
 45.26°N 111.26°W (Elev. 5997 ft)
Last Update:
2:07 am MST Nov 10, 2025
Forecast Valid:
2am MST Nov 10, 2025-6pm MST Nov 16, 2025
 
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