S
M
T
W
T
F
S
28
82°
64°
29
88°
67°
30
88°
63°
1
89°
61°
2
86°
61°
3
84°
65°
4
85°
66°
5
89°
61°
6
87°
61°
7
83°
63°
8
84°
62°
9
82°
61°
10
81°
62°
11
85°
67°
12
89°
64°
13
86°
67°
14
87°
69°
15
85°
63°
16
85°
63°
17
84°
67°
18
87°
64°
19
89°
63°
20
85°
65°
21
84°
64°
22
83°
66°
23
82°
64°
24
83°
63°
25
84°
63°
26
85°
67°
27
89°
68°
28
87°
67°
29
83°
64°
30
84°
63°
31
83°
66°
1
85°
62°
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 81° to 89°, with overnight lows between 61° and 69°. The average high for July is 85° with an average low of 64°. 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.