S
M
T
W
T
F
S
30
68°
56°
31
67°
56°
1
67°
58°
2
71°
58°
3
75°
53°
4
75°
58°
5
72°
54°
6
68°
53°
7
73°
56°
8
65°
54°
9
65°
56°
10
66°
57°
11
63°
49°
12
64°
51°
13
64°
52°
14
63°
51°
15
63°
46°
16
62°
49°
17
Hist. Avg.
62°
47°
18
Hist. Avg.
62°
47°
19
Hist. Avg.
62°
47°
20
Hist. Avg.
61°
47°
21
Hist. Avg.
61°
47°
22
Hist. Avg.
61°
47°
23
Hist. Avg.
61°
46°
24
Hist. Avg.
60°
46°
25
Hist. Avg.
60°
46°
26
Hist. Avg.
60°
46°
27
Hist. Avg.
60°
46°
28
Hist. Avg.
59°
45°
29
Hist. Avg.
59°
45°
30
Hist. Avg.
59°
45°
1
Hist. Avg.
58°
45°
2
Hist. Avg.
58°
45°
3
Hist. Avg.
58°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Seymour
Seymour's September 2026 forecast shows daily high temperatures ranging from 62° to 75°, with overnight lows between 46° and 58°. The average high for September is 67° with an average low of 54°. 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.
