S
M
T
W
T
F
S
30
89°
63°
31
92°
65°
1
96°
72°
2
96°
73°
3
96°
73°
4
97°
71°
5
96°
70°
6
83°
60°
7
83°
58°
8
89°
55°
9
91°
68°
10
75°
64°
11
84°
63°
12
91°
64°
13
85°
58°
14
80°
54°
15
98°
62°
16
92°
70°
17
95°
70°
18
88°
69°
19
84°
68°
20
86°
67°
21
70°
59°
22
72°
58°
23
66°
57°
24
71°
58°
25
75°
56°
26
76°
49°
27
77°
45°
28
79°
43°
29
81°
43°
30
86°
59°
1
91°
66°
2
68°
50°
3
72°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sidell
Sidell'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 Sidell. See also: October | November | December.
