S
M
T
W
T
F
S
30
78°
60°
31
78°
66°
1
78°
63°
2
69°
61°
3
83°
67°
4
82°
68°
5
78°
62°
6
73°
59°
7
77°
53°
8
78°
58°
9
83°
71°
10
84°
64°
11
78°
57°
12
77°
65°
13
79°
62°
14
80°
60°
15
79°
61°
16
78°
57°
17
77°
57°
18
73°
56°
19
75°
54°
20
71°
55°
21
72°
53°
22
69°
58°
23
70°
57°
24
70°
57°
25
72°
54°
26
75°
54°
27
71°
50°
28
70°
54°
29
75°
56°
30
76°
57°
1
75°
56°
2
74°
56°
3
73°
53°
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 69° to 84°, with overnight lows between 50° and 71°. The average high for September is 75° with an average low of 57°. 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.
