Silverthorne Weather Forecast
- 43
- 77
Chance Thunderstorms
- 45
- 79
Chance Thunderstorms
- 46
- 80
Partly Sunny
- 43
- 78
Chance Rain Showers
- 41
- 71
Rain Showers Likely
- 39
- 72
Rain Showers Likely
Today 26 Aug Grand and Summit Counties Below 9000 Feet
Partly cloudy with a 20 percent chance of Thunderstorms. Highs 75 to 81. Northwest Winds 10 to 15 Mph with Gusts up to 20 Mph.
Tonight 26 Aug Grand and Summit Counties Below 9000 Feet
Mostly cloudy in the evening then clearing. Lows 39 to 49.
Silverthorne Temperature Statistics
August Temperature
Copper Mountain - Red Cliff Pass (11.2 miles)
Lowest 13 August, 2026
39.2 °FAverage August
52.9 °FHighest 7 August, 2026
69.8 °F
Climate (2021–2026)
Copper Mountain - Red Cliff Pass (11.2 miles)
Average Low 2021–2026
29.4 °FAverage 2021–2026
35.8 °FAverage High 2021–2026
42 °F