Monthly Historical AveragesNapa, CA
Average Temperature
High
22°
Feels 21
Low
7°
Feels 6
Average Precipitation
5 Days
29.6mm
0cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastWednesday, April 1, 2026
Day
16°Feels 15
Wind
20 km/h SW
Gust
31 km/h
Humidity
74%
P.O.P
70%
Rain
~1 mm
Night
6°Feels 5
Wind
18 km/h SW
Gust
26 km/h
Humidity
96%
P.O.P
90%
Rain
2-4 mm
Historical AveragesApr 1
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity