S
M
T
W
T
F
S
31
74°
68°
1
77°
66°
2
78°
68°
3
78°
68°
4
75°
67°
5
75°
67°
6
76°
66°
7
75°
66°
8
77°
67°
9
78°
69°
10
78°
69°
11
77°
68°
12
77°
68°
13
75°
66°
14
76°
67°
15
77°
68°
16
74°
67°
17
77°
68°
18
76°
68°
19
76°
67°
20
75°
67°
21
76°
69°
22
77°
69°
23
76°
68°
24
74°
69°
25
74°
69°
26
75°
68°
27
75°
68°
28
77°
66°
29
76°
67°
30
76°
68°
1
75°
67°
2
76°
68°
3
74°
68°
4
76°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in San Jose
San Jose's June 2026 forecast shows daily high temperatures ranging from 74° to 78°, with overnight lows between 66° and 69°. The average high for June is 76° with an average low of 68°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in San Jose. See also: July | August | September.
