S
M
T
W
T
F
S
30
81°
55°
31
73°
63°
1
72°
59°
2
73°
59°
3
79°
59°
4
81°
64°
5
72°
57°
6
66°
55°
7
75°
55°
8
77°
61°
9
76°
71°
10
81°
62°
11
76°
55°
12
75°
62°
13
76°
64°
14
77°
60°
15
73°
63°
16
76°
59°
17
72°
56°
18
70°
55°
19
69°
56°
20
65°
54°
21
67°
53°
22
65°
57°
23
65°
57°
24
66°
56°
25
66°
56°
26
68°
55°
27
64°
54°
28
64°
55°
29
69°
56°
30
70°
55°
1
67°
55°
2
66°
54°
3
67°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sandwich
Sandwich's September 2026 forecast shows daily high temperatures ranging from 64° to 81°, with overnight lows between 53° and 71°. The average high for September is 70° 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 Sandwich. See also: October | November | December.
