Alta Sierra Weather Forecast
- 51
- 72
Sunny
- 50
- 72
Sunny
- 52
- 74
Sunny
- 51
- 74
Partly Sunny
- 48
- 68
Mostly Sunny
- 49
- 68
Partly Sunny
Today 18 Oct Motherlode
Sunny. Highs 70 to 78. Light Winds.
Tonight 18 Oct Motherlode
Clear. Lows 51 to 59. Light Winds.
Alta Sierra Temperature Statistics
October Temperature
Nevada County Air Park (6.2 miles)
Lowest 14 October, 2025
41 °FAverage October
56.5 °FHighest 7 October, 2025
78.8 °F
Climate (2020–Present)
Nevada County Air Park (6.2 miles)
Average Low 2020–2025
51.9 °FAverage 2020–2025
60.2 °FAverage High 2020–2025
68.6 °F