S
M
T
W
T
F
S
28
92°
73°
29
94°
72°
30
93°
72°
1
94°
71°
2
94°
72°
3
93°
71°
4
93°
73°
5
89°
71°
6
89°
71°
7
90°
72°
8
89°
71°
9
89°
71°
10
93°
70°
11
90°
70°
12
90°
71°
13
91°
70°
14
93°
70°
15
92°
72°
16
93°
71°
17
92°
72°
18
90°
72°
19
92°
74°
20
95°
72°
21
95°
72°
22
94°
74°
23
95°
74°
24
95°
73°
25
94°
72°
26
95°
69°
27
90°
69°
28
90°
72°
29
91°
70°
30
94°
70°
31
95°
74°
1
95°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in La Mesa
La Mesa's July 2026 forecast shows daily high temperatures ranging from 89° to 95°, with overnight lows between 69° and 74°. The average high for July is 92° with an average low of 72°. 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 La Mesa. See also: August | September | October.
