Big Sky Weather Forecast
- 24
- 41
Mostly Sunny
- 27
- 42
Partly Sunny
- 25
- 43
Mostly Cloudy
- 23
- 43
Mostly Sunny
- 28
- 46
Partly Sunny
- 25
- 43
Snow Likely
Today 27 Feb Gallatin and Madison County Mountains and Centennial Mountains
Breezy, sunny. Highs 30 to 42. Southwest Winds 10 to 15 Mph increasing to 10 to 25 Mph in the afternoon. Gusts up to 60 Mph.
Tonight 27 Feb Gallatin and Madison County Mountains and Centennial Mountains
Mostly clear. Lows 17 to 27. Southwest Winds 10 to 15 Mph. Gusts up to 60 Mph decreasing to 45 Mph after midnight.
Big Sky Temperature Statistics
February Temperature
Ennis - Big Sky Airport (13.7 miles)
Lowest 19 February, 2026
-4 °FAverage February
34.8 °FHighest 5 February, 2026
64.4 °F
Climate (2021–Present)
Ennis - Big Sky Airport (13.7 miles)
Average Low 2021–2026
32 °FAverage 2021–2026
44.4 °FAverage High 2021–2026
56.3 °F