S
M
T
W
T
F
S
28
71°
57°
29
74°
54°
30
72°
56°
1
76°
55°
2
77°
54°
3
81°
53°
4
85°
56°
5
83°
62°
6
83°
59°
7
84°
58°
8
87°
61°
9
87°
61°
10
85°
58°
11
86°
59°
12
89°
65°
13
89°
62°
14
93°
69°
15
97°
70°
16
96°
66°
17
88°
64°
18
95°
64°
19
94°
65°
20
96°
64°
21
95°
66°
22
98°
67°
23
97°
66°
24
98°
65°
25
99°
67°
26
96°
61°
27
96°
64°
28
96°
64°
29
95°
63°
30
92°
62°
31
92°
63°
1
94°
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 88° to 99°, with overnight lows between 61° and 70°. The average high for July is 95° with an average low of 65°. 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.
