S
M
T
W
T
F
S
30
87°
64°
31
82°
72°
1
93°
74°
2
77°
72°
3
89°
72°
4
89°
74°
5
84°
70°
6
83°
66°
7
82°
66°
8
85°
64°
9
89°
71°
10
90°
75°
11
81°
69°
12
83°
65°
13
85°
71°
14
78°
62°
15
74°
57°
16
82°
67°
17
85°
68°
18
83°
59°
19
75°
63°
20
76°
65°
21
73°
66°
22
70°
57°
23
69°
56°
24
73°
58°
25
73°
57°
26
74°
56°
27
73°
57°
28
72°
55°
29
77°
57°
30
72°
54°
1
70°
56°
2
71°
59°
3
76°
54°
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 85°, with overnight lows between 54° and 68°. The average high for September is 75° with an average low of 59°. 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.
