S
M
T
W
T
F
S
30
87°
64°
31
82°
72°
1
93°
74°
2
77°
72°
3
89°
72°
4
89°
74°
5
84°
70°
6
83°
66°
7
82°
66°
8
85°
64°
9
89°
71°
10
90°
75°
11
81°
69°
12
83°
65°
13
85°
71°
14
78°
62°
15
79°
58°
16
83°
62°
17
84°
69°
18
87°
71°
19
78°
65°
20
78°
67°
21
75°
64°
22
66°
59°
23
70°
56°
24
66°
51°
25
73°
55°
26
66°
54°
27
64°
59°
28
66°
57°
29
73°
58°
30
78°
61°
1
82°
64°
2
79°
62°
3
76°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Wynnefield
Wynnefield's September 2026 forecast shows daily high temperatures ranging from 64° to 82°, with overnight lows between 51° and 64°. The average high for September is 72° with an average low of 58°. 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 Wynnefield. See also: October | November | December.
