S
M
T
W
T
F
S
30
91°
72°
31
93°
72°
1
94°
70°
2
96°
72°
3
94°
73°
4
92°
72°
5
93°
72°
6
92°
69°
7
88°
69°
8
87°
67°
9
89°
66°
10
90°
66°
11
89°
62°
12
86°
61°
13
85°
60°
14
84°
61°
15
83°
64°
16
79°
64°
17
79°
63°
18
82°
64°
19
83°
63°
20
77°
63°
21
79°
62°
22
80°
62°
23
81°
61°
24
83°
61°
25
83°
62°
26
82°
61°
27
78°
62°
28
81°
61°
29
79°
60°
30
82°
60°
1
80°
59°
2
78°
59°
3
79°
58°
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 77° to 96°, with overnight lows between 58° and 73°. The average high for September is 84° with an average low of 64°. 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.
