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
-100°
-100°
12
85°
67°
13
88°
65°
14
92°
65°
15
96°
70°
16
93°
67°
17
88°
69°
18
93°
68°
19
92°
66°
20
89°
65°
21
88°
66°
22
89°
68°
23
92°
69°
24
93°
68°
25
86°
65°
26
89°
67°
27
89°
67°
28
88°
67°
29
88°
66°
30
85°
65°
31
85°
64°
1
86°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in El Cajon
El Cajon's July 2026 forecast shows daily high temperatures ranging from 85° to 96°, with overnight lows between 64° and 70°. The average high for July is 89° with an average low of 67°. 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 El Cajon. See also: August | September | October.