Current conditions at
Karst US-191 MP 55.3 (MTKAR)
Lat: 45.34534°NLon: 111.17261°WElev: 5699.0ft.unknown precip
54°F
12°C
| Humidity | 36% |
| Wind Speed | SSE 5 MPH |
| Barometer | NA |
| Dewpoint | 27°F (-3°C) |
| Visibility | NA |
| Last update | 20 May 05:00 PM MDT |
Extended Forecast for
4 Miles E Big Sky MT
This Afternoon

High: 59 °F
Chance
ShowersTonight

Low: 34 °F
Rain/Snow
Thursday
High: 52 °F
Rain/Snow
then Slight
Chance
T-stormsThursday Night

Low: 28 °F
Partly Cloudy
Friday

High: 64 °F
Mostly Sunny
Friday Night

Low: 36 °F
Partly Cloudy
Saturday

High: 75 °F
Sunny
Saturday Night

Low: 42 °F
Partly Cloudy
Sunday
High: 77 °F
Sunny then
Slight Chance
Rain
Detailed Forecast
This Afternoon
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 59. Light west wind.
Tonight
Rain before 11pm, then rain and snow. Some thunder is also possible. Low around 34. Calm wind. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday
Rain and snow showers before 2pm, then a slight chance of rain showers between 2pm and 3pm. Some thunder is also possible. High near 52. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday Night
Partly cloudy, with a low around 28. Calm wind.
Friday
Mostly sunny, with a high near 64. Calm wind.
Friday Night
Partly cloudy, with a low around 36. Calm wind.
Saturday
Sunny, with a high near 75. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 42. West southwest wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Sunday
A slight chance of rain after noon. Sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 43.
Memorial Day
Sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
A chance of rain and thunderstorms. Mostly sunny, with a high near 73.
Tuesday Night
A chance of rain and thunderstorms. Mostly cloudy, with a low around 41.
Wednesday
A chance of rain and thunderstorms. Partly sunny, with a high near 68.
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)
4:17 pm MDT May 20, 2026
5pm MDT May 20, 2026-6pm MDT May 27, 2026


