Grass Valley Weather Forecast
- 52
- 73
Mostly Sunny
- 55
- 78
Mostly Sunny
- 57
- 82
Mostly Sunny
- 54
- 83
Mostly Sunny
- 45
- 71
Partly Sunny
- 41
- 57
Chance Rain Showers
- 43
- 59
Partly Sunny
Today 7 May Motherlode
Sunny. Highs 71 to 81. Light Winds becoming southwest up to 10 Mph in the afternoon.
Tonight 7 May Motherlode
Mostly clear. Lows 50 to 58. Light Winds.
Grass Valley Temperature Statistics
May Temperature
Nevada County Air Park (3.1 miles)
Lowest 4 May, 2025
50 °FAverage May
63 °FHighest 1 May, 2025
75.2 °F
Climate (2020–Present)
Nevada County Air Park (3.1 miles)
Average Low 2020–2025
52 °FAverage 2020–2025
60.4 °FAverage High 2020–2025
68.7 °F