S
M
T
W
T
F
S
30
78°
56°
31
79°
55°
1
77°
56°
2
78°
59°
3
77°
56°
4
78°
55°
5
78°
54°
6
77°
55°
7
76°
52°
8
77°
53°
9
76°
59°
10
76°
53°
11
75°
51°
12
75°
52°
13
76°
55°
14
78°
56°
15
79°
57°
16
80°
58°
17
81°
57°
18
80°
56°
19
79°
56°
20
78°
49°
21
71°
52°
22
72°
55°
23
75°
55°
24
76°
56°
25
77°
52°
26
76°
47°
27
71°
47°
28
68°
48°
29
67°
48°
30
67°
46°
1
67°
52°
2
Hist. Avg.
69°
46°
3
Hist. Avg.
68°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mahoning
Mahoning's September 2026 forecast shows daily high temperatures ranging from 67° to 81°, with overnight lows between 46° and 59°. The average high for September is 76° 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 Mahoning. See also: October | November | December.
