S
M
T
W
T
F
S
28
77°
64°
29
86°
63°
30
88°
68°
1
93°
73°
2
95°
75°
3
95°
77°
4
91°
68°
5
82°
66°
6
79°
70°
7
77°
66°
8
82°
68°
9
88°
68°
10
79°
66°
11
86°
68°
12
82°
64°
13
82°
64°
14
93°
74°
15
94°
67°
16
89°
62°
17
87°
66°
18
79°
66°
19
81°
64°
20
82°
61°
21
81°
62°
22
78°
61°
23
76°
60°
24
80°
61°
25
81°
61°
26
81°
63°
27
77°
62°
28
81°
63°
29
78°
60°
30
77°
66°
31
77°
66°
1
81°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Lemont
Lemont's July 2026 forecast shows daily high temperatures ranging from 76° to 94°, with overnight lows between 60° and 74°. The average high for July is 82° 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 Lemont. See also: August | September | October.