S
M
T
W
T
F
S
27
74°
59°
28
79°
61°
29
86°
56°
30
90°
70°
1
77°
63°
2
74°
52°
3
75°
49°
4
80°
49°
5
76°
50°
6
81°
47°
7
88°
54°
8
85°
52°
9
90°
58°
10
88°
56°
11
91°
55°
12
92°
65°
13
94°
66°
14
75°
66°
15
79°
54°
16
55°
42°
17
60°
36°
18
66°
39°
19
70°
40°
20
73°
46°
21
75°
47°
22
76°
46°
23
77°
51°
24
78°
51°
25
80°
52°
26
78°
53°
27
74°
54°
28
78°
55°
29
84°
58°
30
81°
54°
31
70°
55°
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 70° to 84°, with overnight lows between 52° and 58°. The average high for October is 78° with an average low of 54°. 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.