S
M
T
W
T
F
S
30
73°
58°
31
87°
65°
1
89°
72°
2
93°
71°
3
88°
68°
4
84°
66°
5
81°
55°
6
79°
56°
7
81°
59°
8
81°
64°
9
84°
67°
10
77°
55°
11
75°
54°
12
76°
57°
13
76°
57°
14
77°
58°
15
76°
56°
16
75°
51°
17
76°
53°
18
72°
53°
19
77°
55°
20
77°
56°
21
76°
56°
22
75°
54°
23
74°
51°
24
70°
53°
25
75°
54°
26
75°
53°
27
72°
47°
28
64°
46°
29
63°
46°
30
64°
43°
1
62°
41°
2
66°
51°
3
68°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Youngstown
Youngstown's September 2026 forecast shows daily high temperatures ranging from 62° to 88°, with overnight lows between 41° and 68°. The average high for September is 75° 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 Youngstown. See also: October | November | December.
