S
M
T
W
T
F
S
28
82°
65°
29
93°
77°
30
94°
78°
1
94°
78°
2
95°
72°
3
91°
70°
4
85°
69°
5
77°
67°
6
80°
70°
7
84°
66°
8
89°
67°
9
87°
74°
10
82°
71°
11
83°
70°
12
86°
70°
13
92°
69°
14
96°
75°
15
96°
76°
16
92°
74°
17
86°
73°
18
88°
71°
19
87°
71°
20
87°
69°
21
82°
68°
22
78°
65°
23
78°
64°
24
83°
69°
25
83°
68°
26
86°
69°
27
85°
68°
28
86°
68°
29
80°
65°
30
79°
65°
31
82°
70°
1
86°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Oak Lawn
Oak Lawn's July 2026 forecast shows daily high temperatures ranging from 78° to 96°, with overnight lows between 64° and 76°. The average high for July is 85° with an average low of 69°. 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 Oak Lawn. See also: August | September | October.