S
M
T
W
T
F
S
30
81°
52°
31
75°
64°
1
90°
66°
2
71°
67°
3
88°
66°
4
82°
68°
5
79°
60°
6
79°
57°
7
78°
51°
8
83°
50°
9
82°
56°
10
84°
66°
11
80°
54°
12
74°
50°
13
82°
64°
14
71°
49°
15
73°
41°
16
82°
52°
17
78°
65°
18
80°
60°
19
71°
54°
20
69°
59°
21
71°
56°
22
64°
53°
23
N/A
24
N/A
25
71°
42°
26
61°
54°
27
64°
55°
28
N/A
29
67°
58°
30
73°
58°
1
80°
57°
2
83°
58°
3
72°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Normal Square
Normal Square's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Normal Square. See also: October | November | December.
