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Monthly
Forecasts
Current
Hourly
7 Days
14 Days
Monthly
°C
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Walnut, CA
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January
Average Temperature
High
20°
Feels 20
Low
8°
Feels 6
Average Precipitation
4 Days
Rain amount
33.2mm
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
15°
9
15°
10
19°
11
21°
12
21°
13
22°
14
23°
15
22°
16
22°
17
18°
18
19°
19
21°
20
20°
21
18°
22
17°
23
24
25
26
27
28
29
30
31
Forecast
Thursday, January 8, 2026
Day
15°
Feels 15
Wind
14 km/h W
Gust
20 km/h
Humidity
37%
P.O.P
10%
Night
6°
Feels 4
Wind
8 km/h NE
Gust
12 km/h
Humidity
59%
P.O.P
20%
Historical Averages
Jan 8
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.