S
M
T
W
T
F
S
30
68°
51°
31
67°
54°
1
69°
62°
2
77°
56°
3
76°
51°
4
69°
47°
5
71°
48°
6
71°
45°
7
74°
42°
8
73°
52°
9
68°
60°
10
68°
41°
11
69°
36°
12
75°
39°
13
73°
47°
14
61°
37°
15
61°
36°
16
71°
45°
17
72°
42°
18
62°
35°
19
62°
30°
20
66°
34°
21
53°
35°
22
59°
31°
23
63°
29°
24
64°
29°
25
68°
28°
26
70°
32°
27
71°
40°
28
67°
52°
29
71°
53°
30
67°
51°
1
64°
58°
2
65°
34°
3
61°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Whitney
Whitney's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Whitney. See also: October | November | December.