S
M
T
W
T
F
S
27
69°
44°
28
69°
48°
29
72°
47°
30
68°
59°
1
68°
60°
2
62°
45°
3
64°
42°
4
70°
48°
5
63°
43°
6
73°
47°
7
77°
54°
8
69°
46°
9
66°
47°
10
80°
58°
11
73°
49°
12
86°
60°
13
78°
62°
14
63°
57°
15
62°
56°
16
56°
41°
17
57°
36°
18
63°
39°
19
66°
38°
20
63°
38°
21
71°
37°
22
68°
43°
23
65°
43°
24
64°
47°
25
71°
51°
26
61°
52°
27
62°
55°
28
71°
57°
29
69°
53°
30
65°
55°
31
64°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Waukegan
Waukegan's October 2026 forecast shows daily high temperatures ranging from 61° to 71°, with overnight lows between 51° and 57°. The average high for October is 66° with an average low of 54°. 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 Waukegan. See also: November | December | January.
