S
M
T
W
T
F
S
30
63°
44°
31
63°
45°
1
62°
44°
2
63°
42°
3
57°
38°
4
56°
41°
5
59°
36°
6
52°
31°
7
48°
31°
8
47°
30°
9
48°
27°
10
46°
30°
11
45°
29°
12
45°
30°
13
46°
34°
14
44°
35°
15
46°
33°
16
44°
29°
17
43°
29°
18
42°
32°
19
42°
31°
20
43°
30°
21
41°
29°
22
41°
34°
23
42°
27°
24
44°
24°
25
39°
24°
26
37°
23°
27
36°
22°
28
35°
24°
29
34°
20°
30
34°
22°
1
33°
21°
2
32°
22°
3
34°
17°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Little Chicago
Little Chicago's September 2026 forecast shows daily high temperatures ranging from 32° to 63°, with overnight lows between 17° and 45°. The average high for September is 45° 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 September weather will actually feel in Little Chicago. See also: October | November | December.
