S
M
T
W
T
F
S
28
88°
79°
29
89°
80°
30
88°
78°
1
88°
79°
2
88°
78°
3
89°
80°
4
90°
80°
5
87°
79°
6
83°
73°
7
88°
74°
8
88°
80°
9
88°
77°
10
88°
77°
11
88°
79°
12
85°
77°
13
85°
77°
14
88°
79°
15
87°
79°
16
86°
78°
17
86°
78°
18
87°
78°
19
87°
77°
20
88°
78°
21
87°
77°
22
88°
78°
23
87°
77°
24
88°
78°
25
90°
79°
26
88°
78°
27
86°
80°
28
85°
80°
29
87°
79°
30
87°
80°
31
88°
80°
1
87°
80°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in San Jose
San Jose's July 2026 forecast shows daily high temperatures ranging from 85° to 90°, with overnight lows between 77° and 80°. The average high for July is 87° with an average low of 79°. 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 Jose. See also: August | September | October.