S
M
T
W
T
F
S
30
84°
59°
31
79°
60°
1
69°
61°
2
74°
61°
3
83°
62°
4
84°
65°
5
79°
57°
6
72°
52°
7
80°
48°
8
82°
53°
9
82°
59°
10
87°
64°
11
78°
56°
12
78°
50°
13
71°
63°
14
74°
51°
15
71°
45°
16
78°
52°
17
80°
65°
18
80°
61°
19
67°
52°
20
63°
56°
21
70°
54°
22
68°
46°
23
68°
44°
24
69°
43°
25
70°
44°
26
64°
55°
27
65°
55°
28
59°
52°
29
68°
54°
30
74°
57°
1
78°
62°
2
78°
52°
3
69°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Windsor Locks
Windsor Locks's September 2026 forecast shows daily high temperatures ranging from 59° to 78°, with overnight lows between 50° and 62°. The average high for September is 70° with an average low of 55°. 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 Windsor Locks. See also: October | November | December.
