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Monthly
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Current
Hourly
7 Days
14 Days
Monthly
°C
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Ontario, CA
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Daily Historical Averages
January 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
17°
8
14°
9
16°
10
19°
11
21°
12
21°
13
21°
14
22°
15
22°
16
22°
17
20°
18
21°
19
21°
20
20°
21
16°
22
23
24
25
26
27
28
29
30
31
Forecast
Wednesday, January 7, 2026
Day
17°
Feels 17
Wind
11 km/h W
Gust
16 km/h
Humidity
56%
P.O.P
30%
Rain
<1 mm
Night
9°
Feels 9
Wind
8 km/h NE
Gust
12 km/h
Humidity
90%
P.O.P
20%
Historical Averages
Jan 7
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.
January
Average Temperature
High
20°
Feels 20
Low
7°
Feels 6
Average Precipitation
4 Days
Rain amount
33.3mm
Snow amount
0cm