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

Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

37°F

3°C

Humidity 81%
Wind Speed E 3 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 18 Mar 12:45 AM MDT
Extended Forecast for

13 Miles ESE Big Sky MT

  • Overnight

    Overnight: Partly cloudy, with a low around 33. Breezy, with a west southwest wind 25 to 28 mph, with gusts as high as 33 mph.

    Low: 33 °F

    Partly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 48. Breezy, with a west southwest wind 25 to 29 mph, with gusts as high as 45 mph.

    High: 48 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36. Breezy, with a west southwest wind 22 to 24 mph, with gusts as high as 34 mph.

    Low: 36 °F

    Partly Cloudy
    and Breezy

  • Thursday

    Thursday: Mostly sunny, with a high near 50. Breezy, with a southwest wind 22 to 24 mph, with gusts as high as 37 mph.

    High: 50 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37. Breezy, with a southwest wind around 23 mph, with gusts as high as 32 mph.

    Low: 37 °F

    Partly Cloudy
    and Breezy

  • Friday

    Friday: Mostly sunny, with a high near 51. Breezy, with a southwest wind 23 to 25 mph, with gusts as high as 40 mph.

    High: 51 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38. Windy, with a southwest wind 24 to 30 mph, with gusts as high as 37 mph.

    Low: 38 °F

    Partly Cloudy
    and Windy

  • Saturday

    Saturday: A chance of snow after noon. Partly sunny, with a high near 49. Windy, with a south southwest wind 24 to 30 mph, with gusts as high as 40 mph.

    High: 49 °F

    Partly Sunny
    and Windy
    then Chance
    Snow and
    Breezy

  • Saturday Night

    Saturday Night: A chance of snow before midnight. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 33. Breezy, with a west southwest wind 25 to 28 mph, with gusts as high as 33 mph.
Wednesday
Sunny, with a high near 48. Breezy, with a west southwest wind 25 to 29 mph, with gusts as high as 45 mph.
Wednesday Night
Partly cloudy, with a low around 36. Breezy, with a west southwest wind 22 to 24 mph, with gusts as high as 34 mph.
Thursday
Mostly sunny, with a high near 50. Breezy, with a southwest wind 22 to 24 mph, with gusts as high as 37 mph.
Thursday Night
Partly cloudy, with a low around 37. Breezy, with a southwest wind around 23 mph, with gusts as high as 32 mph.
Friday
Mostly sunny, with a high near 51. Breezy, with a southwest wind 23 to 25 mph, with gusts as high as 40 mph.
Friday Night
Partly cloudy, with a low around 38. Windy, with a southwest wind 24 to 30 mph, with gusts as high as 37 mph.
Saturday
A chance of snow after noon. Partly sunny, with a high near 49. Windy, with a south southwest wind 24 to 30 mph, with gusts as high as 40 mph.
Saturday Night
A chance of snow before midnight. Mostly cloudy, with a low around 27.
Sunday
A slight chance of snow after noon. Partly sunny, with a high near 39.
Sunday Night
Partly cloudy, with a low around 27.
Monday
A slight chance of snow. Partly sunny, with a high near 41.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
A chance of snow. Mostly cloudy, with a high near 43. Breezy.
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:
12:27 am MDT Mar 18, 2026
Forecast Valid:
1am MDT Mar 18, 2026-6pm MDT Mar 24, 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