S
M
T
W
T
F
S
26
51°
34°
27
51°
39°
28
45°
32°
29
50°
31°
30
47°
29°
1
46°
39°
2
52°
37°
3
52°
40°
4
51°
40°
5
52°
37°
6
48°
37°
7
47°
37°
8
48°
37°
9
53°
36°
10
51°
36°
11
53°
34°
12
54°
41°
13
55°
38°
14
54°
42°
15
55°
40°
16
55°
42°
17
53°
41°
18
56°
38°
19
56°
37°
20
54°
36°
21
55°
40°
22
57°
40°
23
56°
39°
24
56°
41°
25
59°
41°
26
64°
40°
27
67°
42°
28
66°
44°
29
68°
43°
30
68°
41°
31
61°
41°
1
61°
40°
2
66°
41°
3
67°
43°
4
65°
44°
5
62°
45°
6
62°
43°
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 53° to 68°, with overnight lows between 36° and 45°. The average high for May is 60° with an average low of 41°. 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.
