S
M
T
W
T
F
S
30
101°
76°
31
101°
77°
1
101°
79°
2
101°
76°
3
91°
77°
4
100°
78°
5
100°
76°
6
101°
76°
7
101°
77°
8
102°
79°
9
101°
79°
10
100°
77°
11
100°
73°
12
101°
75°
13
100°
78°
14
99°
78°
15
101°
77°
16
99°
74°
17
96°
72°
18
97°
71°
19
96°
72°
20
97°
73°
21
91°
70°
22
90°
66°
23
92°
68°
24
89°
67°
25
92°
66°
26
91°
67°
27
89°
68°
28
87°
68°
29
89°
68°
30
89°
67°
1
88°
67°
2
87°
66°
3
88°
66°
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 87° to 101°, with overnight lows between 66° and 78°. The average high for September is 92° with an average low of 70°. 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.
