Monthly Historical AveragesSaint Helena, CA
Average Temperature
High
31°
Feels 31
Low
12°
Feels 12
Average Precipitation
1 Days
1.8mm
0cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, July 26, 2026
Day
33°Feels 33
Wind
13 km/h SW
Gust
19 km/h
Humidity
25%
P.O.P
0%
Night
12°Feels 12
Wind
11 km/h W
Gust
16 km/h
Humidity
90%
P.O.P
0%
Historical AveragesJul 26
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity