Big Sky Weather Forecast
- 47
- 80
Mostly Sunny
- 48
- 80
Thunderstorms
- 46
- 79
Isolated Thunderstorms
- 48
- 76
Slight Chance Thunderstorms
- 48
- 77
Slight Chance Thunderstorms
- 49
- 79
Mostly Sunny
- 48
- 81
Mostly Sunny
Today 15 Sep Estancia Valley
Mostly sunny. Highs in the lower 80s.
Tonight 15 Sep Estancia Valley
Mostly clear. Lows in the upper 40s.
Big Sky Temperature Statistics
September Temperature
Moriarty Municipal Airport (12.4 miles)
Lowest 2 September, 2025
44.6 °FAverage September
64.8 °FHighest 3 September, 2025
87.4 °F
Climate (2020–Present)
Moriarty Municipal Airport (12.4 miles)
Average Low 2020–2025
34.5 °FAverage 2020–2025
53 °FAverage High 2020–2025
69.3 °F