Monthly Historical AveragesOntario, CA
Average Temperature
High
19°
Feels 18
Low
7°
Feels 6
Average Precipitation
6 Days
52mm
0cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastMonday, December 29, 2025
Day
19°Feels 19
Wind
15 km/h NE
Gust
23 km/h
Humidity
23%
P.O.P
10%
Night
11°Feels 10
Wind
10 km/h NE
Gust
15 km/h
Humidity
39%
P.O.P
20%
Historical AveragesDec 29
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity