S
M
T
W
T
F
S
28
81°
62°
29
79°
62°
30
80°
65°
1
84°
68°
2
81°
69°
3
85°
69°
4
81°
63°
5
79°
62°
6
79°
62°
7
80°
63°
8
80°
63°
9
81°
68°
10
82°
68°
11
82°
67°
12
83°
68°
13
82°
69°
14
81°
69°
15
82°
68°
16
82°
68°
17
81°
67°
18
82°
68°
19
83°
69°
20
85°
66°
21
83°
64°
22
86°
70°
23
88°
63°
24
83°
61°
25
81°
62°
26
81°
61°
27
82°
62°
28
82°
64°
29
83°
65°
30
83°
63°
31
88°
65°
1
88°
68°
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 79° to 88°, with overnight lows between 61° and 70°. The average high for July is 82° with an average low of 65°. 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.