Monthly Historical AveragesSaint Helena, CA
Average Temperature
High
16°
Feels 16
Low
5°
Feels 4
Average Precipitation
8 Days
80.2mm
0cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, February 22, 2026
Day
15°Feels 15
Wind
7 km/h E
Gust
10 km/h
Humidity
62%
P.O.P
40%
Rain
<1 mm
Night
8°Feels 8
Wind
4 km/h S
Gust
5 km/h
Humidity
95%
P.O.P
30%
Historical AveragesFeb 22
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity