S
M
T
W
T
F
S
30
81°
62°
31
81°
60°
1
77°
56°
2
73°
57°
3
73°
55°
4
74°
52°
5
74°
55°
6
80°
61°
7
81°
60°
8
80°
60°
9
78°
59°
10
79°
59°
11
79°
58°
12
80°
59°
13
79°
60°
14
81°
48°
15
70°
48°
16
70°
50°
17
71°
49°
18
79°
55°
19
77°
54°
20
79°
52°
21
74°
45°
22
70°
42°
23
66°
43°
24
66°
45°
25
72°
53°
26
65°
52°
27
73°
54°
28
73°
54°
29
72°
52°
30
75°
52°
1
75°
51°
2
73°
45°
3
71°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Whitehall
Whitehall's September 2026 forecast shows daily high temperatures ranging from 65° to 81°, with overnight lows between 42° and 62°. The average high for September is 75° with an average low of 53°. 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 Whitehall. See also: October | November | December.