S
M
T
W
T
F
S
30
85°
64°
31
89°
65°
1
94°
75°
2
92°
73°
3
N/A
4
94°
69°
5
87°
62°
6
80°
57°
7
79°
61°
8
86°
64°
9
92°
68°
10
86°
59°
11
79°
55°
12
81°
55°
13
80°
58°
14
82°
58°
15
82°
56°
16
81°
52°
17
80°
58°
18
74°
57°
19
79°
58°
20
76°
57°
21
77°
57°
22
78°
55°
23
76°
51°
24
73°
53°
25
79°
56°
26
75°
48°
27
67°
45°
28
67°
43°
29
66°
44°
30
67°
43°
1
65°
42°
2
66°
48°
3
70°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cicero
Cicero's September 2026 forecast shows daily high temperatures ranging from 65° to 94°, with overnight lows between 42° and 69°. The average high for September is 77° with an average low of 55°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Cicero. See also: October | November | December.