S
M
T
W
T
F
S
28
79°
59°
29
80°
60°
30
74°
58°
1
75°
59°
2
76°
58°
3
77°
60°
4
76°
59°
5
76°
58°
6
80°
60°
7
76°
58°
8
76°
57°
9
75°
58°
10
76°
56°
11
78°
57°
12
74°
58°
13
78°
59°
14
75°
60°
15
75°
58°
16
78°
58°
17
75°
59°
18
77°
60°
19
80°
62°
20
80°
62°
21
79°
61°
22
79°
62°
23
76°
59°
24
73°
60°
25
75°
59°
26
73°
59°
27
73°
60°
28
74°
58°
29
72°
58°
30
75°
57°
31
73°
58°
1
74°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Sunnyvale
Sunnyvale's July 2026 forecast shows daily high temperatures ranging from 72° to 80°, with overnight lows between 56° and 62°. The average high for July is 76° with an average low of 59°. 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 Sunnyvale. See also: August | September | October.
