S
M
T
W
T
F
S
30
82°
63°
31
82°
62°
1
83°
57°
2
75°
55°
3
74°
55°
4
74°
54°
5
75°
54°
6
77°
61°
7
82°
61°
8
79°
60°
9
75°
60°
10
79°
61°
11
81°
60°
12
81°
60°
13
80°
61°
14
81°
51°
15
73°
50°
16
70°
51°
17
73°
50°
18
79°
56°
19
80°
58°
20
80°
57°
21
78°
51°
22
77°
46°
23
69°
47°
24
68°
47°
25
70°
55°
26
72°
55°
27
75°
54°
28
73°
54°
29
75°
52°
30
75°
53°
1
74°
53°
2
73°
47°
3
73°
44°
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 68° to 83°, with overnight lows between 44° and 63°. The average high for September is 76° 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.
