S
M
T
W
T
F
S
30
82°
66°
31
86°
69°
1
86°
69°
2
85°
68°
3
79°
64°
4
79°
61°
5
78°
60°
6
77°
60°
7
80°
67°
8
84°
61°
9
77°
59°
10
76°
60°
11
79°
55°
12
74°
58°
13
74°
57°
14
73°
56°
15
75°
58°
16
76°
59°
17
75°
58°
18
76°
56°
19
76°
55°
20
73°
54°
21
72°
54°
22
72°
55°
23
74°
57°
24
77°
54°
25
78°
59°
26
77°
60°
27
71°
57°
28
73°
55°
29
76°
52°
30
75°
51°
1
69°
54°
2
73°
60°
3
74°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Collingdale
Collingdale's September 2026 forecast shows daily high temperatures ranging from 69° to 86°, with overnight lows between 49° and 69°. The average high for September is 77° with an average low of 58°. 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 Collingdale. See also: October | November | December.
