S
M
T
W
T
F
S
27
95°
76°
28
94°
78°
29
95°
77°
30
90°
79°
1
81°
70°
2
75°
69°
3
76°
67°
4
80°
66°
5
83°
62°
6
84°
61°
7
84°
63°
8
85°
65°
9
86°
64°
10
82°
65°
11
81°
66°
12
82°
63°
13
80°
62°
14
81°
61°
15
80°
58°
16
77°
62°
17
78°
63°
18
80°
57°
19
72°
52°
20
77°
55°
21
74°
55°
22
79°
61°
23
80°
61°
24
79°
62°
25
77°
61°
26
72°
60°
27
73°
60°
28
71°
58°
29
70°
54°
30
69°
54°
31
72°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Oak Lawn
Oak Lawn's October 2026 forecast shows daily high temperatures ranging from 69° to 86°, with overnight lows between 52° and 69°. The average high for October is 78° with an average low of 61°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Oak Lawn. See also: November | December | January.