S
M
T
W
T
F
S
28
72°
62°
29
75°
62°
30
76°
63°
1
78°
63°
2
82°
62°
3
87°
61°
4
92°
62°
5
86°
65°
6
88°
63°
7
86°
63°
8
86°
64°
9
87°
63°
10
80°
63°
11
82°
64°
12
89°
65°
13
88°
67°
14
88°
67°
15
94°
67°
16
91°
65°
17
86°
67°
18
85°
64°
19
87°
67°
20
88°
65°
21
87°
67°
22
90°
70°
23
89°
68°
24
94°
69°
25
91°
67°
26
91°
66°
27
88°
64°
28
88°
67°
29
87°
66°
30
85°
64°
31
85°
63°
1
86°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Rancho San Diego
Rancho San Diego's July 2026 forecast shows daily high temperatures ranging from 85° to 94°, with overnight lows between 63° and 70°. The average high for July is 88° with an average low of 66°. 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 Rancho San Diego. See also: August | September | October.
