S
M
T
W
T
F
S
28
70°
63°
29
72°
63°
30
73°
64°
1
73°
62°
2
73°
60°
3
75°
62°
4
75°
63°
5
73°
64°
6
73°
63°
7
74°
62°
8
73°
64°
9
71°
65°
10
71°
65°
11
74°
65°
12
74°
64°
13
75°
66°
14
76°
65°
15
74°
66°
16
76°
67°
17
76°
66°
18
76°
67°
19
77°
68°
20
77°
68°
21
76°
67°
22
77°
68°
23
77°
67°
24
75°
64°
25
74°
63°
26
72°
63°
27
74°
64°
28
75°
65°
29
76°
67°
30
78°
68°
31
78°
68°
1
77°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Chula Vista
Chula Vista's July 2026 forecast shows daily high temperatures ranging from 71° to 78°, with overnight lows between 60° and 69°. The average high for July is 75° with an average low of 65°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Chula Vista. See also: August | September | October.
