Ketchum Weather Forecast
- 30
- 52
Partly Sunny
- 27
- 52
Mostly Sunny
- 32
- 51
Chance Rain
- 29
- 48
Rain/Snow
- 17
- 42
Chance Snow
- 26
- 38
Rain/Snow
- 22
- 41
Rain/Snow
Today 13 Dec Sun Valley Region
Mostly sunny. Highs 44 to 53.
Tonight 13 Dec Sun Valley Region
Partly cloudy. Lows 27 to 34.
Ketchum Temperature Statistics
December Temperature
Hailey, Friedman Memorial Airport (12.4 miles)
Lowest 1 December, 2025
15.8 °FAverage December
30.5 °FHighest 11 December, 2025
55.4 °F
Climate (2020–Present)
Hailey, Friedman Memorial Airport (12.4 miles)
Average Low 2020–2025
34.2 °FAverage 2020–2025
42.4 °FAverage High 2020–2025
56 °F