S
M
T
W
T
F
S
30
82°
42°
31
72°
40°
1
69°
46°
2
75°
40°
3
74°
39°
4
68°
35°
5
67°
43°
6
74°
42°
7
76°
33°
8
68°
33°
9
67°
35°
10
67°
32°
11
65°
31°
12
66°
36°
13
68°
38°
14
71°
40°
15
74°
42°
16
76°
40°
17
76°
33°
18
65°
34°
19
64°
39°
20
71°
37°
21
69°
30°
22
70°
26°
23
61°
29°
24
62°
30°
25
69°
32°
26
60°
28°
27
61°
33°
28
60°
26°
29
58°
29°
30
Hist. Avg.
66°
35°
1
Hist. Avg.
66°
35°
2
Hist. Avg.
65°
35°
3
Hist. Avg.
65°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Sedan
Sedan's September 2026 forecast shows daily high temperatures ranging from 58° to 82°, with overnight lows between 26° and 46°. The average high for September is 69° with an average low of 35°. 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 Sedan. See also: October | November | December.