S
M
T
W
T
F
S
26
84°
73°
27
86°
77°
28
88°
75°
29
86°
75°
30
88°
66°
1
66°
55°
2
73°
54°
3
79°
64°
4
79°
64°
5
81°
70°
6
84°
70°
7
77°
63°
8
75°
66°
9
93°
73°
10
90°
73°
11
79°
66°
12
87°
66°
13
93°
68°
14
93°
70°
15
88°
72°
16
86°
75°
17
87°
76°
18
85°
76°
19
85°
75°
20
86°
74°
21
86°
74°
22
87°
75°
23
89°
74°
24
89°
74°
25
88°
71°
26
84°
74°
27
85°
73°
28
85°
74°
29
86°
74°
30
86°
73°
31
87°
75°
1
86°
75°
2
86°
74°
3
87°
75°
4
86°
75°
5
87°
74°
6
88°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Houston
Houston's May 2026 forecast shows daily high temperatures ranging from 84° to 93°, with overnight lows between 66° and 76°. The average high for May is 87° with an average low of 73°. 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 Houston. See also: June | July | August.
