S
M
T
W
T
F
S
30
74°
52°
31
74°
52°
1
73°
53°
2
75°
55°
3
74°
53°
4
76°
52°
5
74°
50°
6
75°
51°
7
73°
48°
8
74°
49°
9
72°
56°
10
72°
50°
11
71°
48°
12
72°
49°
13
73°
55°
14
76°
51°
15
77°
54°
16
78°
55°
17
79°
55°
18
78°
54°
19
77°
50°
20
76°
46°
21
68°
51°
22
68°
52°
23
72°
52°
24
74°
53°
25
75°
47°
26
73°
42°
27
69°
43°
28
64°
44°
29
63°
44°
30
63°
42°
1
64°
48°
2
Hist. Avg.
65°
46°
3
Hist. Avg.
65°
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 63° to 79°, with overnight lows between 42° and 56°. The average high for September is 73° with an average low of 50°. 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.
