S
M
T
W
T
F
S
26
85°
70°
27
88°
74°
28
85°
71°
29
73°
60°
30
64°
58°
1
63°
53°
2
76°
49°
3
82°
49°
4
81°
55°
5
87°
68°
6
68°
54°
7
71°
50°
8
80°
53°
9
85°
64°
10
80°
64°
11
79°
61°
12
82°
50°
13
87°
51°
14
88°
61°
15
89°
64°
16
88°
69°
17
89°
73°
18
89°
73°
19
81°
67°
20
77°
67°
21
74°
66°
22
79°
67°
23
79°
64°
24
81°
66°
25
82°
65°
26
81°
67°
27
83°
68°
28
82°
66°
29
83°
65°
30
82°
65°
31
86°
64°
1
86°
68°
2
84°
68°
3
84°
67°
4
81°
62°
5
82°
67°
6
85°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cypress
Cypress's May 2026 forecast shows daily high temperatures ranging from 74° to 89°, with overnight lows between 62° and 73°. The average high for May is 82° with an average low of 67°. 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 Cypress. See also: June | July | August.