S
M
T
W
T
F
S
30
73°
52°
31
77°
54°
1
80°
50°
2
73°
49°
3
72°
50°
4
74°
56°
5
76°
58°
6
79°
54°
7
77°
54°
8
73°
55°
9
71°
57°
10
75°
55°
11
73°
53°
12
73°
55°
13
70°
53°
14
69°
47°
15
68°
47°
16
68°
45°
17
69°
50°
18
68°
53°
19
73°
54°
20
75°
53°
21
73°
49°
22
68°
44°
23
66°
51°
24
65°
48°
25
72°
44°
26
63°
49°
27
70°
50°
28
71°
50°
29
Hist. Avg.
64°
46°
30
Hist. Avg.
64°
46°
1
Hist. Avg.
63°
45°
2
Hist. Avg.
63°
45°
3
Hist. Avg.
62°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in South Windsor
South Windsor's September 2026 forecast shows daily high temperatures ranging from 63° to 80°, with overnight lows between 44° and 58°. The average high for September is 72° 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 South Windsor. See also: October | November | December.
