S
M
T
W
T
F
S
26
85°
55°
27
85°
63°
28
81°
63°
29
71°
59°
30
67°
49°
1
68°
46°
2
70°
41°
3
73°
38°
4
82°
59°
5
71°
60°
6
71°
53°
7
69°
47°
8
76°
41°
9
83°
53°
10
85°
53°
11
78°
49°
12
81°
45°
13
83°
51°
14
76°
45°
15
83°
50°
16
86°
70°
17
88°
67°
18
89°
74°
19
91°
70°
20
76°
65°
21
76°
64°
22
79°
67°
23
83°
67°
24
80°
65°
25
77°
68°
26
77°
68°
27
84°
67°
28
84°
69°
29
78°
61°
30
77°
61°
31
79°
60°
1
80°
61°
2
79°
57°
3
80°
59°
4
80°
61°
5
82°
62°
6
84°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Henderson
Henderson's May 2026 forecast shows daily high temperatures ranging from 77° to 84°, with overnight lows between 57° and 69°. The average high for May is 80° with an average low of 63°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Henderson. See also: June | July | August.