S
M
T
W
T
F
S
31
68°
39°
1
79°
41°
2
88°
48°
3
72°
57°
4
74°
50°
5
65°
48°
6
59°
46°
7
71°
51°
8
71°
51°
9
68°
50°
10
69°
49°
11
67°
51°
12
73°
52°
13
79°
55°
14
84°
57°
15
84°
57°
16
82°
56°
17
70°
53°
18
73°
52°
19
69°
49°
20
74°
52°
21
76°
50°
22
69°
49°
23
66°
49°
24
67°
48°
25
73°
51°
26
77°
56°
27
78°
57°
28
78°
57°
29
77°
56°
30
78°
57°
1
78°
53°
2
73°
52°
3
77°
53°
4
78°
55°
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 59° to 84°, with overnight lows between 46° and 57°. The average high for June is 73° with an average low of 52°. 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.