Island Park Reservoir Weather Forecast
- 7
- 29
Becoming Sunny
- 9
- 31
Sunny
- 8
- 34
Mostly Sunny
- 10
- 34
Mostly Sunny
- 13
- 33
Partly Sunny
- 16
- 33
Mostly Cloudy
Today 16 Jan Centennial Mountains/Island Park
Sunny. Patchy freezing fog in the morning. Highs 27 to 34.
Tonight 16 Jan Centennial Mountains/Island Park
Mostly clear. Lows 9 to 19.
Island Park Reservoir Temperature Statistics
January Temperature
West Yellowstone (27.3 miles)
Lowest
–Average January
–Highest
–
Climate (2021–Present)
West Yellowstone (27.3 miles)
Average Low 2021–2025
34 °FAverage 2021–2025
51.3 °FAverage High 2021–2025
66.6 °F