S
M
T
W
T
F
S
30
79°
61°
31
80°
54°
1
82°
57°
2
81°
62°
3
80°
62°
4
81°
58°
5
77°
55°
6
72°
54°
7
73°
54°
8
71°
51°
9
72°
49°
10
78°
57°
11
76°
56°
12
77°
54°
13
73°
54°
14
71°
53°
15
64°
50°
16
64°
52°
17
72°
50°
18
71°
54°
19
74°
54°
20
74°
53°
21
72°
53°
22
72°
49°
23
62°
45°
24
61°
44°
25
67°
50°
26
64°
51°
27
71°
51°
28
71°
52°
29
70°
51°
30
68°
50°
1
68°
48°
2
65°
47°
3
62°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Ironton
Ironton's September 2026 forecast shows daily high temperatures ranging from 61° to 82°, with overnight lows between 44° and 62°. The average high for September is 72° with an average low of 53°. 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 Ironton. See also: October | November | December.