S
M
T
W
T
F
S
30
83°
58°
31
79°
69°
1
90°
69°
2
74°
69°
3
87°
68°
4
85°
69°
5
79°
61°
6
78°
58°
7
77°
57°
8
81°
61°
9
86°
69°
10
82°
63°
11
80°
53°
12
78°
63°
13
79°
67°
14
83°
61°
15
80°
64°
16
79°
59°
17
77°
59°
18
73°
55°
19
74°
53°
20
74°
55°
21
73°
54°
22
72°
58°
23
72°
58°
24
71°
57°
25
72°
57°
26
77°
56°
27
75°
54°
28
75°
56°
29
76°
57°
30
77°
57°
1
76°
56°
2
75°
55°
3
74°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Pennside
Pennside's September 2026 forecast shows daily high temperatures ranging from 71° to 86°, with overnight lows between 53° 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 Pennside. See also: October | November | December.
