S
M
T
W
T
F
S
30
81°
52°
31
74°
52°
1
73°
58°
2
73°
55°
3
75°
51°
4
78°
58°
5
80°
57°
6
81°
49°
7
72°
49°
8
71°
48°
9
71°
49°
10
77°
52°
11
77°
50°
12
70°
49°
13
69°
47°
14
70°
55°
15
74°
54°
16
77°
46°
17
75°
45°
18
67°
44°
19
67°
45°
20
68°
50°
21
65°
51°
22
66°
45°
23
66°
48°
24
65°
44°
25
67°
51°
26
71°
52°
27
72°
43°
28
71°
42°
29
65°
49°
30
66°
49°
1
65°
50°
2
64°
47°
3
65°
41°
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 81°, with overnight lows between 41° and 58°. The average high for September is 71° with an average low of 49°. 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.
