S
M
T
W
T
F
S
27
75°
68°
28
78°
58°
29
77°
58°
30
76°
60°
1
76°
62°
2
99°
60°
3
99°
71°
4
97°
73°
5
96°
72°
6
94°
71°
7
90°
67°
8
86°
68°
9
83°
70°
10
80°
69°
11
79°
66°
12
78°
62°
13
78°
64°
14
79°
64°
15
78°
61°
16
75°
59°
17
77°
62°
18
79°
63°
19
78°
62°
20
78°
61°
21
77°
62°
22
78°
61°
23
77°
61°
24
77°
60°
25
76°
61°
26
76°
60°
27
73°
55°
28
68°
54°
29
69°
52°
30
70°
52°
31
69°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Chula Vista
Chula Vista's October 2026 forecast shows daily high temperatures ranging from 68° to 99°, with overnight lows between 52° and 73°. The average high for October is 80° with an average low of 63°. 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 Chula Vista. See also: November | December | January.
