S
M
T
W
T
F
S
28
86°
69°
29
100°
66°
30
90°
69°
1
90°
70°
2
93°
74°
3
96°
73°
4
96°
70°
5
89°
68°
6
88°
67°
7
86°
68°
8
82°
62°
9
78°
67°
10
84°
68°
11
86°
68°
12
86°
67°
13
85°
67°
14
85°
68°
15
86°
68°
16
86°
67°
17
87°
68°
18
83°
67°
19
78°
65°
20
82°
67°
21
85°
68°
22
86°
68°
23
86°
67°
24
84°
67°
25
86°
66°
26
86°
68°
27
85°
69°
28
87°
68°
29
86°
67°
30
82°
66°
31
82°
67°
1
79°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Wheaton
Wheaton's July 2026 forecast shows daily high temperatures ranging from 78° to 100°, with overnight lows between 62° and 74°. The average high for July is 86° with an average low of 68°. 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 Wheaton. See also: August | September | October.
