S
M
T
W
T
F
S
28
92°
79°
29
93°
78°
30
95°
75°
1
94°
75°
2
95°
75°
3
94°
74°
4
96°
73°
5
99°
74°
6
97°
74°
7
95°
73°
8
94°
75°
9
97°
75°
10
97°
76°
11
82°
76°
12
91°
76°
13
92°
75°
14
87°
74°
15
86°
75°
16
90°
76°
17
92°
75°
18
94°
76°
19
96°
75°
20
95°
74°
21
95°
77°
22
98°
76°
23
96°
77°
24
94°
76°
25
95°
78°
26
96°
77°
27
96°
78°
28
96°
78°
29
95°
77°
30
96°
78°
31
96°
78°
1
95°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Mission Valley
Mission Valley's July 2026 forecast shows daily high temperatures ranging from 82° to 98°, with overnight lows between 74° and 78°. The average high for July is 93° with an average low of 76°. 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 Mission Valley. See also: August | September | October.
