S
M
T
W
T
F
S
30
84°
68°
31
84°
68°
1
85°
65°
2
78°
60°
3
77°
60°
4
77°
61°
5
78°
59°
6
80°
65°
7
84°
66°
8
83°
65°
9
82°
66°
10
84°
66°
11
84°
65°
12
85°
66°
13
84°
67°
14
84°
57°
15
76°
56°
16
73°
55°
17
75°
56°
18
73°
54°
19
74°
53°
20
73°
53°
21
78°
55°
22
79°
59°
23
79°
52°
24
78°
52°
25
72°
50°
26
72°
53°
27
74°
58°
28
77°
58°
29
77°
49°
30
71°
49°
1
69°
56°
2
70°
56°
3
72°
55°
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 69° to 85°, with overnight lows between 49° and 68°. The average high for September is 78° with an average low of 59°. 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.
