S
M
T
W
T
F
S
31
75°
46°
1
77°
50°
2
76°
49°
3
82°
46°
4
85°
51°
5
82°
61°
6
83°
64°
7
85°
60°
8
87°
62°
9
88°
71°
10
90°
69°
11
87°
65°
12
76°
62°
13
82°
58°
14
71°
54°
15
71°
48°
16
75°
54°
17
N/A
18
69°
55°
19
72°
54°
20
74°
56°
21
69°
56°
22
74°
53°
23
74°
56°
24
78°
57°
25
79°
59°
26
80°
62°
27
78°
63°
28
79°
63°
29
78°
64°
30
79°
61°
1
76°
59°
2
77°
64°
3
77°
60°
4
78°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
June Weather in Summit
Summit's June 2026 forecast shows daily high temperatures ranging from 69° to 80°, with overnight lows between 53° and 64°. The average high for June is 76° with an average low of 59°. 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.