S
M
T
W
T
F
S
26
61°
45°
27
60°
44°
28
62°
45°
29
61°
41°
30
63°
44°
1
67°
47°
2
63°
44°
3
62°
46°
4
62°
43°
5
62°
42°
6
65°
53°
7
74°
51°
8
68°
47°
9
65°
52°
10
66°
45°
11
64°
45°
12
63°
44°
13
64°
45°
14
66°
49°
15
66°
51°
16
68°
49°
17
71°
56°
18
74°
48°
19
67°
47°
20
68°
48°
21
71°
58°
22
75°
59°
23
76°
60°
24
79°
59°
25
77°
60°
26
80°
61°
27
80°
58°
28
74°
52°
29
82°
59°
30
82°
56°
31
77°
53°
1
78°
54°
2
76°
55°
3
77°
60°
4
80°
60°
5
75°
61°
6
75°
61°
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 60° to 82°, with overnight lows between 41° and 61°. The average high for May is 70° with an average low of 51°. 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.
