S
M
T
W
T
F
S
28
71°
60°
29
72°
61°
30
72°
58°
1
73°
58°
2
73°
60°
3
74°
59°
4
77°
61°
5
75°
62°
6
76°
62°
7
75°
61°
8
77°
61°
9
76°
62°
10
78°
63°
11
77°
64°
12
84°
67°
13
79°
64°
14
80°
64°
15
78°
63°
16
78°
64°
17
79°
63°
18
80°
62°
19
78°
61°
20
78°
59°
21
75°
59°
22
75°
60°
23
76°
59°
24
75°
60°
25
76°
59°
26
75°
60°
27
75°
60°
28
76°
62°
29
76°
61°
30
77°
62°
31
80°
64°
1
81°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Otay Mesa
Otay Mesa's July 2026 forecast shows daily high temperatures ranging from 72° to 84°, with overnight lows between 58° and 67°. The average high for July is 77° with an average low of 61°. 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 Otay Mesa. See also: August | September | October.