S
M
T
W
T
F
S
28
84°
64°
29
90°
65°
30
84°
61°
1
84°
64°
2
88°
64°
3
83°
64°
4
83°
65°
5
86°
65°
6
89°
63°
7
87°
64°
8
86°
64°
9
85°
63°
10
83°
64°
11
88°
63°
12
86°
66°
13
87°
64°
14
81°
58°
15
84°
61°
16
85°
63°
17
77°
63°
18
81°
63°
19
85°
62°
20
85°
64°
21
86°
64°
22
87°
63°
23
85°
64°
24
83°
64°
25
84°
63°
26
82°
64°
27
85°
64°
28
83°
63°
29
83°
63°
30
81°
62°
31
77°
59°
1
78°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Summit
Summit's July 2026 forecast shows daily high temperatures ranging from 77° to 89°, with overnight lows between 58° and 66°. The average high for July is 84° with an average low of 63°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Summit. See also: August | September | October.