S
M
T
W
T
F
S
30
95°
71°
31
96°
71°
1
96°
70°
2
95°
71°
3
96°
71°
4
95°
70°
5
95°
69°
6
96°
66°
7
94°
64°
8
89°
66°
9
89°
68°
10
92°
68°
11
92°
62°
12
91°
63°
13
84°
68°
14
93°
69°
15
92°
58°
16
93°
57°
17
83°
57°
18
81°
58°
19
81°
56°
20
82°
55°
21
81°
55°
22
81°
56°
23
82°
55°
24
82°
56°
25
83°
59°
26
84°
60°
27
88°
63°
28
88°
63°
29
87°
55°
30
83°
57°
1
79°
59°
2
87°
54°
3
80°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Seymour
Seymour's September 2026 forecast shows daily high temperatures ranging from 79° to 96°, with overnight lows between 54° and 71°. The average high for September is 88° with an average low of 62°. 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 Seymour. See also: October | November | December.
