S
M
T
W
T
F
S
28
71°
57°
29
74°
54°
30
72°
56°
1
76°
55°
2
77°
54°
3
84°
55°
4
86°
57°
5
85°
59°
6
84°
58°
7
87°
59°
8
91°
60°
9
92°
61°
10
91°
59°
11
92°
61°
12
93°
62°
13
96°
63°
14
96°
63°
15
97°
64°
16
93°
61°
17
94°
62°
18
93°
63°
19
93°
64°
20
94°
64°
21
95°
63°
22
93°
64°
23
94°
63°
24
92°
60°
25
90°
60°
26
90°
61°
27
92°
61°
28
93°
62°
29
94°
63°
30
95°
64°
31
96°
64°
1
97°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Simi Valley
Simi Valley's July 2026 forecast shows daily high temperatures ranging from 84° to 97°, with overnight lows between 55° and 64°. The average high for July is 92° 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 Simi Valley. See also: August | September | October.
