S
M
T
W
T
F
S
26
82°
73°
27
82°
72°
28
86°
67°
29
82°
64°
30
81°
63°
31
81°
63°
1
82°
64°
2
81°
63°
3
82°
64°
4
81°
65°
5
81°
68°
6
83°
65°
7
80°
64°
8
80°
65°
9
79°
64°
10
80°
64°
11
85°
64°
12
84°
65°
13
84°
70°
14
86°
70°
15
86°
71°
16
85°
63°
17
82°
64°
18
80°
65°
19
78°
70°
20
84°
69°
21
86°
70°
22
85°
69°
23
85°
66°
24
84°
65°
25
79°
70°
26
81°
65°
27
79°
62°
28
78°
63°
29
Hist. Avg.
81°
64°
30
Hist. Avg.
81°
64°
31
Hist. Avg.
81°
64°
1
Hist. Avg.
80°
64°
2
Hist. Avg.
80°
64°
3
Hist. Avg.
80°
63°
4
Hist. Avg.
80°
63°
5
Hist. Avg.
80°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Oak Lawn
Oak Lawn's August 2026 forecast shows daily high temperatures ranging from 78° to 86°, with overnight lows between 62° and 73°. The average high for August is 82° with an average low of 66°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Oak Lawn. See also: September | October | November.
