S
M
T
W
T
F
S
31
83°
61°
1
87°
60°
2
83°
52°
3
83°
50°
4
84°
55°
5
82°
70°
6
89°
72°
7
88°
70°
8
81°
69°
9
89°
71°
10
89°
65°
11
88°
64°
12
80°
57°
13
77°
58°
14
71°
56°
15
76°
57°
16
75°
55°
17
77°
61°
18
70°
55°
19
75°
61°
20
78°
60°
21
76°
60°
22
79°
61°
23
78°
59°
24
78°
60°
25
77°
60°
26
81°
66°
27
83°
66°
28
85°
63°
29
78°
60°
30
79°
61°
1
79°
61°
2
82°
67°
3
82°
65°
4
81°
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 70° to 85°, with overnight lows between 55° and 67°. The average high for June is 78° with an average low of 61°. 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.
