
Showers and Thunderstorms from the Southern Plains into the Ohio Valley; Record Warmth in the Central U.S.
Heavy rain and widely scattered severe storms are expected over portions of the central and southern Plains into the Ohio Valley. Unseasonable warmth will continue for a few more days across the Midwest, Southeast, and Mid-Atlantic where several daily record highs could fall. Read More >
Current conditions at
Karst US-191 MP 55.3 (MTKAR)
Lat: 45.34534°NLon: 111.17261°WElev: 5699.0ft.NA
34°F
1°C
| Humidity | 100% |
| Wind Speed | WSW 0 MPH |
| Barometer | NA |
| Dewpoint | 34°F (1°C) |
| Visibility | NA |
| Last update | 15 Oct 08:45 AM MDT |
Extended Forecast for
4 Miles E Big Sky MT
Today
High: 42 °F
Patchy Fog
then SunnyTonight

Low: 25 °F
Mostly Clear
Friday

High: 64 °F
Sunny
Friday Night

Low: 31 °F
Mostly Clear
Saturday

High: 64 °F
Mostly Sunny
Saturday Night

Low: 29 °F
Partly Cloudy
Sunday

High: 63 °F
Sunny
Sunday Night

Low: 33 °F
Mostly Clear
Monday

High: 64 °F
Sunny
Detailed Forecast
Today
Patchy fog before 10am. Otherwise, sunny, with a high near 42. Light north wind.
Tonight
Mostly clear, with a low around 25. Calm wind.
Friday
Sunny, with a high near 64. Light south wind.
Friday Night
Mostly clear, with a low around 31. South wind 5 to 9 mph, with gusts as high as 23 mph.
Saturday
Mostly sunny, with a high near 64. South wind 6 to 8 mph, with gusts as high as 18 mph.
Saturday Night
Partly cloudy, with a low around 29. South wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 26 mph.
Sunday
Sunny, with a high near 63. Light and variable wind.
Sunday Night
Mostly clear, with a low around 33. Calm wind becoming south around 6 mph in the evening.
Monday
Sunny, with a high near 64.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
A chance of rain. Partly sunny, with a high near 59.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 33.
Wednesday
A slight chance of rain and snow. Partly sunny, with a high near 57.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles E Big Sky MT
45.26°N 111.26°W (Elev. 5997 ft)
45.26°N 111.26°W (Elev. 5997 ft)
4:41 am MDT Oct 15, 2026
9am MDT Oct 15, 2026-6pm MDT Oct 21, 2026


