S
M
T
W
T
F
S
28
80°
62°
29
82°
62°
30
82°
62°
1
83°
63°
2
86°
65°
3
87°
63°
4
88°
67°
5
89°
67°
6
89°
67°
7
89°
66°
8
88°
66°
9
88°
65°
10
85°
63°
11
86°
63°
12
88°
64°
13
88°
66°
14
85°
65°
15
87°
65°
16
88°
66°
17
89°
67°
18
89°
68°
19
90°
69°
20
90°
68°
21
89°
69°
22
91°
69°
23
91°
68°
24
90°
68°
25
90°
67°
26
89°
67°
27
88°
66°
28
86°
63°
29
84°
63°
30
86°
66°
31
85°
64°
1
85°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in San Fernando Valley
San Fernando Valley's July 2026 forecast shows daily high temperatures ranging from 80° to 91°, with overnight lows between 62° and 69°. The average high for July is 87° 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 San Fernando Valley. See also: August | September | October.