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Monthly
Forecasts
Current
Hourly
7 Days
14 Days
Monthly
°C
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Fontana, CA
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January
Average Temperature
High
19°
Feels 19
Low
8°
Feels 6
Average Precipitation
4 Days
Rain amount
31.9mm
Snow amount
0cm
Content continues below
Daily Historical Averages
January 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
20°
12
21°
13
23°
14
25°
15
25°
16
23°
17
20°
18
22°
19
22°
20
19°
21
17°
22
14°
23
19°
24
19°
25
15°
26
27
28
29
30
31
Forecast
Sunday, January 11, 2026
Day
20°
Feels 20
Wind
12 km/h NE
Gust
18 km/h
Humidity
24%
P.O.P
20%
Night
9°
Feels 8
Wind
11 km/h NE
Gust
16 km/h
Humidity
42%
P.O.P
0%
Historical Averages
Jan 11
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.