S
M
T
W
T
F
S
31
77°
50°
1
77°
55°
2
70°
57°
3
79°
55°
4
79°
54°
5
83°
54°
6
74°
51°
7
77°
52°
8
68°
57°
9
70°
56°
10
76°
58°
11
83°
61°
12
86°
59°
13
84°
61°
14
82°
60°
15
81°
61°
16
76°
56°
17
79°
59°
18
78°
58°
19
78°
60°
20
76°
59°
21
77°
59°
22
75°
58°
23
74°
55°
24
76°
56°
25
73°
56°
26
73°
57°
27
76°
58°
28
79°
60°
29
80°
60°
30
79°
59°
1
76°
59°
2
79°
58°
3
79°
58°
4
74°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Sunnyvale
Sunnyvale's June 2026 forecast shows daily high temperatures ranging from 68° to 86°, with overnight lows between 51° and 61°. The average high for June is 77° with an average low of 58°. 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 Sunnyvale. See also: July | August | September.
