S
M
T
W
T
F
S
30
81°
63°
31
83°
64°
1
83°
64°
2
82°
63°
3
82°
56°
4
75°
54°
5
74°
57°
6
77°
62°
7
81°
63°
8
81°
61°
9
75°
57°
10
74°
61°
11
80°
60°
12
79°
62°
13
80°
61°
14
79°
61°
15
80°
60°
16
79°
60°
17
73°
58°
18
78°
52°
19
70°
50°
20
70°
49°
21
68°
48°
22
68°
53°
23
70°
51°
24
70°
48°
25
68°
49°
26
68°
54°
27
70°
55°
28
74°
56°
29
73°
55°
30
74°
55°
1
68°
53°
2
72°
53°
3
66°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Wilmerding
Wilmerding's September 2026 forecast shows daily high temperatures ranging from 66° to 83°, with overnight lows between 48° and 64°. The average high for September is 75° with an average low of 57°. 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 Wilmerding. See also: October | November | December.
