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
77°
53°
15
77°
55°
16
82°
62°
17
85°
67°
18
84°
66°
19
77°
65°
20
79°
65°
21
75°
66°
22
77°
63°
23
75°
60°
24
72°
59°
25
75°
59°
26
74°
60°
27
78°
62°
28
78°
60°
29
78°
59°
30
73°
56°
1
71°
57°
2
72°
60°
3
77°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Upper Darby Township
Upper Darby Township's September 2026 forecast shows daily high temperatures ranging from 71° to 85°, with overnight lows between 53° and 67°. The average high for September is 77° with an average low of 60°. 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 Upper Darby Township. See also: October | November | December.
