S
M
T
W
T
F
S
30
84°
58°
31
80°
58°
1
78°
57°
2
78°
57°
3
79°
62°
4
77°
57°
5
82°
57°
6
78°
56°
7
77°
55°
8
76°
56°
9
77°
56°
10
79°
62°
11
81°
61°
12
75°
59°
13
74°
61°
14
81°
60°
15
Hist. Avg.
75°
57°
16
Hist. Avg.
74°
57°
17
Hist. Avg.
74°
56°
18
Hist. Avg.
74°
56°
19
Hist. Avg.
73°
56°
20
Hist. Avg.
73°
55°
21
Hist. Avg.
72°
55°
22
Hist. Avg.
72°
54°
23
Hist. Avg.
72°
54°
24
Hist. Avg.
71°
54°
25
Hist. Avg.
71°
53°
26
Hist. Avg.
70°
53°
27
Hist. Avg.
70°
52°
28
Hist. Avg.
70°
52°
29
Hist. Avg.
69°
52°
30
Hist. Avg.
69°
51°
1
Hist. Avg.
69°
51°
2
Hist. Avg.
68°
50°
3
Hist. Avg.
68°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Piermont
Piermont's September 2026 forecast shows daily high temperatures ranging from 74° to 84°, with overnight lows between 55° and 62°. The average high for September is 79° 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 Piermont. See also: October | November | December.
