S
M
T
W
T
F
S
30
101°
76°
31
101°
72°
1
99°
73°
2
86°
76°
3
94°
75°
4
98°
71°
5
93°
74°
6
96°
73°
7
100°
73°
8
97°
74°
9
98°
74°
10
97°
74°
11
96°
74°
12
95°
73°
13
98°
72°
14
98°
73°
15
96°
72°
16
94°
70°
17
93°
69°
18
95°
68°
19
92°
63°
20
89°
64°
21
88°
63°
22
92°
68°
23
91°
69°
24
91°
69°
25
90°
68°
26
90°
68°
27
89°
67°
28
90°
67°
29
89°
66°
30
86°
64°
1
82°
57°
2
78°
56°
3
78°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Henderson
Henderson's September 2026 forecast shows daily high temperatures ranging from 78° to 98°, with overnight lows between 55° and 74°. The average high for September is 91° with an average low of 68°. 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 Henderson. See also: October | November | December.
