Monthly Historical AveragesAlta Loma, CA
Average Temperature
High
18°
Feels 18
Low
7°
Feels 4
Average Precipitation
6 Days
55.7mm
0cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastWednesday, December 31, 2025
Day
16°Feels 16
Wind
7 km/h E
Gust
11 km/h
Humidity
57%
P.O.P
90%
Rain
10-15 mm
Night
12°Feels 12
Wind
7 km/h E
Gust
11 km/h
Humidity
96%
P.O.P
100%
Rain
15-20 mm
Historical AveragesDec 31
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity