S
M
T
W
T
F
S
30
102°
82°
31
99°
81°
1
99°
77°
2
99°
72°
3
95°
66°
4
97°
72°
5
100°
68°
6
82°
72°
7
97°
68°
8
99°
73°
9
104°
81°
10
106°
84°
11
106°
84°
12
104°
81°
13
104°
81°
14
102°
73°
15
97°
73°
16
97°
77°
17
91°
75°
18
95°
72°
19
93°
68°
20
95°
66°
21
91°
73°
22
90°
68°
23
91°
66°
24
93°
66°
25
97°
72°
26
95°
72°
27
93°
72°
28
79°
64°
29
81°
63°
30
91°
63°
1
96°
69°
2
99°
72°
3
98°
71°
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 96° to 99°, with overnight lows between 69° and 72°. The average high for September is 98° with an average low of 71°. 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.
