S
M
T
W
T
F
S
27
79°
57°
28
78°
53°
29
78°
55°
30
80°
55°
1
84°
56°
2
79°
55°
3
79°
54°
4
84°
58°
5
85°
59°
6
85°
60°
7
84°
60°
8
85°
59°
9
84°
58°
10
84°
57°
11
83°
58°
12
82°
57°
13
79°
50°
14
73°
53°
15
74°
49°
16
74°
50°
17
73°
49°
18
73°
49°
19
75°
50°
20
76°
51°
21
79°
55°
22
79°
51°
23
71°
55°
24
71°
55°
25
74°
51°
26
70°
46°
27
69°
46°
28
69°
47°
29
68°
45°
30
70°
47°
31
71°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Walnut Creek
Walnut Creek's October 2026 forecast shows daily high temperatures ranging from 68° to 85°, with overnight lows between 45° and 60°. The average high for October is 77° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Walnut Creek. See also: November | December | January.
