S
M
T
W
T
F
S
30
88°
66°
31
90°
69°
1
88°
69°
2
87°
63°
3
87°
61°
4
85°
61°
5
86°
63°
6
87°
66°
7
91°
68°
8
92°
68°
9
92°
67°
10
90°
67°
11
90°
66°
12
88°
67°
13
91°
60°
14
91°
59°
15
85°
59°
16
86°
60°
17
85°
59°
18
86°
60°
19
88°
59°
20
89°
62°
21
90°
64°
22
86°
64°
23
83°
63°
24
83°
63°
25
82°
62°
26
87°
62°
27
87°
61°
28
86°
62°
29
87°
61°
30
87°
60°
1
86°
60°
2
87°
57°
3
88°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Piedmont
Piedmont's September 2026 forecast shows daily high temperatures ranging from 82° to 92°, with overnight lows between 54° and 69°. The average high for September is 87° 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 Piedmont. See also: October | November | December.
