S
M
T
W
T
F
S
27
73°
50°
28
75°
49°
29
79°
50°
30
65°
60°
1
72°
60°
2
67°
50°
3
71°
48°
4
74°
49°
5
70°
44°
6
74°
49°
7
80°
53°
8
74°
49°
9
72°
52°
10
81°
55°
11
78°
58°
12
84°
66°
13
78°
58°
14
66°
57°
15
66°
54°
16
65°
45°
17
59°
43°
18
60°
48°
19
64°
46°
20
66°
46°
21
64°
45°
22
63°
46°
23
60°
40°
24
59°
45°
25
63°
46°
26
62°
40°
27
62°
38°
28
51°
34°
29
51°
42°
30
55°
41°
31
62°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Joliet
Joliet's October 2026 forecast shows daily high temperatures ranging from 51° to 84°, with overnight lows between 34° and 66°. The average high for October is 65° with an average low of 47°. 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 Joliet. See also: November | December | January.
