S
M
T
W
T
F
S
30
95°
63°
31
95°
70°
1
98°
70°
2
99°
70°
3
100°
71°
4
101°
72°
5
101°
73°
6
91°
69°
7
90°
61°
8
95°
62°
9
98°
76°
10
88°
73°
11
87°
70°
12
89°
71°
13
94°
68°
14
88°
66°
15
98°
64°
16
97°
74°
17
98°
72°
18
98°
71°
19
99°
72°
20
96°
71°
21
87°
67°
22
78°
60°
23
77°
61°
24
79°
59°
25
79°
61°
26
80°
58°
27
78°
58°
28
81°
58°
29
83°
60°
30
86°
61°
1
78°
53°
2
74°
60°
3
78°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in White Plains
White Plains's September 2026 forecast shows daily high temperatures ranging from 74° to 99°, with overnight lows between 53° and 72°. The average high for September is 83° with an average low of 62°. 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 White Plains. See also: October | November | December.
