Monthly Historical AveragesNapa, CA
Average Temperature
High
14°
Feels 14
Low
4°
Feels 3
Average Precipitation
6 Days
52.5mm
0cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastFriday, January 2, 2026
Day
16°Feels 15
Wind
17 km/h E
Gust
25 km/h
Humidity
67%
P.O.P
40%
Rain
~1 mm
Night
13°Feels 11
Wind
22 km/h S
Gust
34 km/h
Humidity
93%
P.O.P
90%
Rain
5-10 mm
Historical AveragesJan 2
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity