S
M
T
W
T
F
S
30
75°
56°
31
78°
58°
1
79°
58°
2
79°
57°
3
78°
52°
4
73°
48°
5
72°
51°
6
72°
56°
7
77°
56°
8
78°
55°
9
75°
54°
10
71°
55°
11
77°
54°
12
76°
55°
13
77°
55°
14
76°
54°
15
77°
55°
16
76°
54°
17
75°
53°
18
75°
47°
19
68°
46°
20
69°
44°
21
66°
43°
22
67°
47°
23
70°
47°
24
69°
43°
25
66°
43°
26
66°
46°
27
65°
47°
28
71°
49°
29
70°
48°
30
72°
49°
1
69°
47°
2
70°
47°
3
64°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Swanton
Swanton's September 2026 forecast shows daily high temperatures ranging from 64° to 79°, with overnight lows between 43° and 58°. The average high for September is 73° with an average low of 51°. 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 Swanton. See also: October | November | December.
