Monthly Historical AveragesBanner, CA
Average Temperature
High
21°
Feels 21
Low
10°
Feels 7
Average Precipitation
1 Days
4.7mm
0.1cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastThursday, May 21, 2026
Day
29°Feels 29
Wind
19 km/h W
Gust
28 km/h
Humidity
12%
P.O.P
0%
Night
14°Feels 14
Wind
16 km/h W
Gust
24 km/h
Humidity
44%
P.O.P
0%
Historical AveragesMay 21
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity