Fan Mountain Weather Forecast
- 49
- 70
Mostly Sunny
- 48
- 74
Slight Chance Thunderstorms
- 48
- 72
Chance Thunderstorms
- 43
- 67
Chance Thunderstorms
- 41
- 60
Rain Showers Likely
- 40
- 62
Chance Thunderstorms
- 43
- 63
Slight Chance Thunderstorms
Today 30 Jun Gallatin and Madison County Mountains and Centennial Mountains
Warmer, sunny. Highs 70 to 80. Southeast Winds up to 10 Mph shifting to the southwest in the afternoon.
Tonight 30 Jun Gallatin and Madison County Mountains and Centennial Mountains
Mostly clear. Lows 50 to 55. South Winds up to 10 Mph.
Fan Mountain Temperature Statistics
June Temperature
Ennis - Big Sky Airport (6.2 miles)
Lowest 3 June, 2025
30.2 °FAverage June
59.5 °FHighest 9 June, 2025
86 °F
Climate (2020–Present)
Ennis - Big Sky Airport (6.2 miles)
Average Low 2020–2025
31.3 °FAverage 2020–2025
43.7 °FAverage High 2020–2025
55.6 °F