S
M
T
W
T
F
S
27
74°
43°
28
74°
43°
29
73°
42°
30
73°
43°
1
72°
42°
2
72°
42°
3
70°
41°
4
65°
40°
5
58°
40°
6
64°
38°
7
69°
39°
8
65°
39°
9
68°
35°
10
54°
31°
11
62°
38°
12
67°
30°
13
64°
23°
14
56°
22°
15
50°
20°
16
52°
23°
17
51°
24°
18
52°
25°
19
53°
27°
20
54°
24°
21
53°
23°
22
50°
24°
23
50°
23°
24
51°
20°
25
48°
18°
26
46°
22°
27
48°
25°
28
48°
21°
29
49°
25°
30
48°
23°
31
48°
19°
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 46° to 74°, with overnight lows between 18° and 43°. The average high for October is 59° with an average low of 30°. 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.
