Monthly Historical AveragesGrass Valley, CA
Average Temperature
High
12°
Feels 12
Low
3°
Feels 1
Average Precipitation
8 Days
86.1mm
0.8cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastFriday, January 2, 2026
Day
10°Feels 8
Wind
20 km/h S
Gust
21 km/h
Humidity
76%
P.O.P
30%
Night
4°Feels 0
Wind
22 km/h SE
Gust
33 km/h
Humidity
100%
P.O.P
90%
Rain
~20 mm
Historical AveragesJan 2
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity