S
M
T
W
T
F
S
30
70°
48°
31
70°
49°
1
73°
54°
2
76°
57°
3
72°
59°
4
76°
59°
5
82°
55°
6
78°
50°
7
70°
47°
8
70°
47°
9
74°
46°
10
74°
51°
11
73°
49°
12
67°
49°
13
75°
54°
14
77°
54°
15
77°
53°
16
69°
54°
17
66°
53°
18
70°
52°
19
71°
47°
20
66°
51°
21
72°
43°
22
67°
41°
23
63°
41°
24
63°
42°
25
64°
44°
26
62°
41°
27
62°
41°
28
63°
44°
29
59°
39°
30
60°
40°
1
60°
42°
2
64°
39°
3
58°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in South Hero
South Hero's September 2026 forecast shows daily high temperatures ranging from 58° to 82°, with overnight lows between 39° and 59°. The average high for September is 69° with an average low of 48°. 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 South Hero. See also: October | November | December.
