S
M
T
W
T
F
S
31
68°
46°
1
75°
53°
2
77°
54°
3
78°
55°
4
79°
56°
5
79°
57°
6
78°
56°
7
78°
57°
8
77°
58°
9
80°
59°
10
80°
59°
11
81°
58°
12
82°
58°
13
73°
55°
14
71°
54°
15
83°
58°
16
83°
54°
17
78°
50°
18
73°
49°
19
74°
51°
20
75°
59°
21
75°
52°
22
76°
52°
23
74°
53°
24
73°
52°
25
74°
53°
26
76°
52°
27
79°
54°
28
77°
53°
29
79°
58°
30
79°
59°
1
81°
54°
2
80°
53°
3
77°
61°
4
80°
62°
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 68° to 83°, with overnight lows between 46° and 62°. The average high for June is 77° with an average low of 55°. 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.