Alta Sierra Weather Forecast
- 62
- 88
Decreasing Clouds
- 63
- 88
Partly Sunny
- 63
- 89
Mostly Sunny
- 62
- 88
Partly Sunny
- 59
- 85
Mostly Sunny
- 60
- 84
Sunny
Today 17 Aug Northern Motherlode Between 1000-3000 ft
Mostly cloudy in the morning then clearing. Highs 85 to 91. Light Winds becoming southwest up to 10 Mph in the afternoon.
Tonight 17 Aug Northern Motherlode Between 1000-3000 ft
Partly cloudy. Lows 60 to 66. Light Winds.
Alta Sierra Temperature Statistics
August Temperature
Nevada County Air Park (6.2 miles)
Lowest 13 August, 2026
60.8 °FAverage August
81.8 °FHighest 7 August, 2026
96.8 °F
Climate (2021–2026)
Nevada County Air Park (6.2 miles)
Average Low 2021–2026
52.1 °FAverage 2021–2026
60.2 °FAverage High 2021–2026
68.5 °F