S
M
T
W
T
F
S
27
32°
20°
28
35°
29°
29
43°
29°
30
44°
32°
31
46°
33°
1
47°
28°
2
47°
22°
3
48°
16°
4
35°
14°
5
29°
15°
6
28°
20°
7
30°
23°
8
35°
17°
9
33°
14°
10
30°
11°
11
32°
10°
12
28°
11°
13
27°
9°
14
27°
7°
15
23°
12°
16
24°
14°
17
27°
15°
18
29°
14°
19
31°
16°
20
31°
24°
21
32°
26°
22
37°
25°
23
39°
23°
24
36°
20°
25
35°
17°
26
34°
20°
27
36°
24°
28
30°
18°
29
Hist. Avg.
37°
20°
30
Hist. Avg.
37°
20°
31
Hist. Avg.
38°
20°
1
Hist. Avg.
38°
21°
2
Hist. Avg.
38°
21°
3
Hist. Avg.
38°
21°
4
Hist. Avg.
38°
21°
5
Hist. Avg.
38°
21°
6
Hist. Avg.
38°
21°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Walnut Creek
Walnut Creek's January 2027 forecast shows daily high temperatures ranging from 23° to 48°, with overnight lows between 7° and 33°. The average high for January is 34° with an average low of 19°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Walnut Creek. See also: February | March | April.
