S
M
T
W
T
F
S
31
53°
34°
1
54°
33°
2
55°
34°
3
55°
35°
4
56°
33°
5
56°
32°
6
58°
35°
7
59°
36°
8
56°
37°
9
58°
39°
10
58°
39°
11
59°
38°
12
60°
37°
13
64°
40°
14
66°
41°
15
68°
38°
16
68°
39°
17
70°
38°
18
62°
37°
19
61°
40°
20
62°
43°
21
63°
40°
22
63°
42°
23
64°
42°
24
64°
39°
25
65°
39°
26
67°
46°
27
71°
46°
28
66°
45°
29
70°
42°
30
64°
46°
1
71°
47°
2
72°
47°
3
70°
43°
4
70°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Summit
Summit's June 2026 forecast shows daily high temperatures ranging from 53° to 72°, with overnight lows between 32° and 47°. The average high for June is 63° with an average low of 40°. 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 Summit. See also: July | August | September.