S
M
T
W
T
F
S
30
78°
68°
31
75°
68°
1
74°
67°
2
78°
64°
3
74°
60°
4
73°
61°
5
74°
63°
6
74°
64°
7
78°
67°
8
81°
66°
9
76°
63°
10
76°
66°
11
71°
54°
12
70°
57°
13
69°
56°
14
71°
54°
15
70°
56°
16
71°
54°
17
70°
54°
18
70°
53°
19
69°
51°
20
67°
51°
21
68°
52°
22
68°
52°
23
69°
53°
24
72°
58°
25
76°
61°
26
76°
61°
27
69°
59°
28
75°
57°
29
68°
49°
30
67°
54°
1
66°
59°
2
74°
46°
3
75°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sandusky
Sandusky's September 2026 forecast shows daily high temperatures ranging from 66° to 81°, with overnight lows between 46° and 68°. The average high for September is 72° with an average low of 58°. 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 Sandusky. See also: October | November | December.