S
M
T
W
T
F
S
31
80°
66°
1
79°
65°
2
78°
64°
3
77°
66°
4
77°
67°
5
78°
66°
6
78°
65°
7
78°
67°
8
79°
66°
9
75°
69°
10
74°
68°
11
77°
68°
12
76°
69°
13
74°
69°
14
76°
68°
15
76°
69°
16
75°
69°
17
75°
68°
18
76°
69°
19
73°
69°
20
74°
68°
21
74°
69°
22
74°
69°
23
75°
68°
24
74°
68°
25
73°
69°
26
73°
69°
27
74°
68°
28
73°
69°
29
74°
69°
30
73°
68°
1
73°
69°
2
74°
69°
3
76°
68°
4
75°
69°
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 73° to 80°, with overnight lows between 64° and 69°. The average high for June is 75° 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.
