S
M
T
W
T
F
S
30
79°
60°
31
78°
59°
1
79°
60°
2
79°
58°
3
78°
51°
4
70°
49°
5
69°
57°
6
70°
59°
7
76°
58°
8
76°
58°
9
77°
57°
10
73°
53°
11
75°
52°
12
75°
57°
13
76°
57°
14
74°
56°
15
74°
54°
16
73°
47°
17
67°
54°
18
71°
50°
19
68°
48°
20
68°
45°
21
63°
44°
22
62°
51°
23
63°
47°
24
62°
44°
25
61°
43°
26
60°
43°
27
61°
50°
28
68°
45°
29
67°
42°
30
59°
42°
1
60°
43°
2
60°
39°
3
58°
42°
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 58° to 79°, with overnight lows between 39° and 60°. The average high for September is 69° 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.
