S
M
T
W
T
F
S
26
88°
45°
27
78°
43°
28
76°
44°
29
69°
37°
30
67°
46°
1
55°
44°
2
73°
42°
3
82°
45°
4
86°
55°
5
66°
43°
6
55°
40°
7
74°
36°
8
81°
50°
9
89°
47°
10
69°
45°
11
81°
42°
12
95°
55°
13
95°
55°
14
100°
62°
15
96°
60°
16
98°
57°
17
95°
62°
18
95°
50°
19
69°
42°
20
66°
41°
21
78°
54°
22
77°
59°
23
84°
55°
24
88°
53°
25
89°
61°
26
80°
54°
27
73°
58°
28
81°
60°
29
82°
59°
30
93°
54°
31
95°
61°
1
91°
61°
2
88°
58°
3
79°
59°
4
80°
57°
5
84°
58°
6
87°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cactus
Cactus's May 2026 forecast shows daily high temperatures ranging from 79° to 95°, with overnight lows between 54° and 61°. The average high for May is 86° with an average low of 59°. 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 Cactus. See also: June | July | August.
