S
M
T
W
T
F
S
31
53°
30°
1
52°
29°
2
54°
30°
3
55°
32°
4
56°
34°
5
56°
35°
6
55°
36°
7
55°
33°
8
57°
33°
9
60°
38°
10
62°
40°
11
65°
41°
12
63°
39°
13
61°
39°
14
61°
42°
15
62°
42°
16
61°
40°
17
60°
40°
18
61°
41°
19
63°
39°
20
63°
39°
21
64°
42°
22
68°
43°
23
70°
40°
24
66°
41°
25
64°
40°
26
63°
40°
27
65°
43°
28
66°
45°
29
63°
40°
30
64°
43°
1
64°
43°
2
70°
45°
3
71°
48°
4
72°
47°
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 52° to 72°, with overnight lows between 29° and 48°. The average high for June is 62° with an average low of 39°. 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.