S
M
T
W
T
F
S
26
62°
48°
27
77°
50°
28
68°
54°
29
62°
47°
30
57°
44°
1
52°
31°
2
52°
30°
3
61°
47°
4
75°
49°
5
67°
43°
6
57°
35°
7
60°
36°
8
68°
46°
9
74°
52°
10
66°
38°
11
70°
38°
12
74°
39°
13
62°
43°
14
66°
39°
15
66°
42°
16
77°
59°
17
84°
62°
18
86°
66°
19
82°
62°
20
62°
48°
21
69°
48°
22
66°
51°
23
67°
60°
24
73°
51°
25
78°
54°
26
78°
55°
27
77°
57°
28
81°
46°
29
81°
50°
30
N/A
31
77°
55°
1
77°
53°
2
76°
51°
3
77°
55°
4
81°
61°
5
81°
63°
6
80°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Houston
Houston's May 2026 forecast shows daily high temperatures ranging from 76° to 81°, with overnight lows between 51° and 64°. The average high for May is 78° with an average low of 57°. 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.
