S
M
T
W
T
F
S
27
78°
65°
28
78°
63°
29
78°
64°
30
76°
62°
1
72°
62°
2
74°
63°
3
78°
62°
4
77°
63°
5
79°
64°
6
77°
63°
7
77°
63°
8
76°
61°
9
70°
57°
10
67°
57°
11
74°
59°
12
70°
59°
13
72°
61°
14
69°
60°
15
73°
59°
16
72°
59°
17
74°
57°
18
64°
57°
19
65°
58°
20
67°
59°
21
71°
55°
22
68°
50°
23
59°
47°
24
60°
50°
25
65°
52°
26
71°
44°
27
60°
43°
28
60°
45°
29
62°
48°
30
67°
49°
31
69°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in California
California's October 2026 forecast shows daily high temperatures ranging from 59° to 79°, with overnight lows between 43° and 65°. The average high for October is 71° with an average low of 57°. 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 California. See also: November | December | January.