Upper Red Rock Lake Weather Forecast
- 21
- 41
Becoming Sunny
- 24
- 45
Mostly Sunny
- 29
- 52
Partly Sunny
- 27
- 51
Partly Sunny
- 31
- 48
Mostly Cloudy
- 26
- 41
Snow
Today 20 Oct Gallatin and Madison County Mountains and Centennial Mountains
Colder. Mostly cloudy in the morning then clearing. Highs 30 to 40. West Winds 10 to 20 Mph with Gusts to around 35 Mph.
Tonight 20 Oct Gallatin and Madison County Mountains and Centennial Mountains
Mostly clear. Lows 20 to 25. Southwest Winds 5 to 15 Mph.
Upper Red Rock Lake Temperature Statistics
October Temperature
West Yellowstone (29.8 miles)
Lowest 7 October, 2025
19.4 °FAverage October
40.6 °FHighest 9 October, 2025
69.8 °F
Climate (2020–Present)
West Yellowstone (29.8 miles)
Average Low 2020–2025
33.6 °FAverage 2020–2025
50.8 °FAverage High 2020–2025
66 °F