S
M
T
W
T
F
S
31
81°
47°
1
80°
53°
2
78°
52°
3
79°
56°
4
94°
51°
5
88°
53°
6
93°
59°
7
94°
61°
8
84°
62°
9
94°
56°
10
89°
55°
11
79°
47°
12
92°
58°
13
80°
50°
14
74°
51°
15
81°
46°
16
94°
47°
17
94°
58°
18
90°
53°
19
83°
58°
20
90°
51°
21
89°
57°
22
89°
54°
23
84°
54°
24
87°
57°
25
78°
53°
26
90°
55°
27
96°
63°
28
96°
57°
29
89°
57°
30
93°
58°
1
89°
59°
2
94°
62°
3
100°
63°
4
96°
64°
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 89° to 100°, with overnight lows between 57° and 64°. The average high for June is 94° with an average low of 60°. 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.
