S
M
T
W
T
F
S
30
81°
64°
31
84°
68°
1
87°
61°
2
85°
62°
3
80°
61°
4
81°
62°
5
81°
69°
6
85°
68°
7
87°
67°
8
81°
67°
9
79°
66°
10
83°
66°
11
84°
65°
12
82°
66°
13
81°
64°
14
78°
59°
15
77°
59°
16
77°
58°
17
76°
58°
18
76°
63°
19
79°
64°
20
80°
65°
21
81°
61°
22
78°
57°
23
75°
62°
24
74°
63°
25
80°
57°
26
79°
55°
27
Hist. Avg.
75°
57°
28
Hist. Avg.
74°
56°
29
Hist. Avg.
74°
56°
30
Hist. Avg.
74°
56°
1
Hist. Avg.
73°
55°
2
Hist. Avg.
73°
55°
3
Hist. Avg.
72°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Upper Darby Township
Upper Darby Township's September 2026 forecast shows daily high temperatures ranging from 74° to 87°, with overnight lows between 55° and 69°. The average high for September is 80° with an average low of 63°. 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.
