S
M
T
W
T
F
S
26
73°
52°
27
81°
50°
28
73°
58°
29
66°
55°
30
60°
45°
1
65°
39°
2
56°
39°
3
63°
35°
4
76°
46°
5
72°
58°
6
61°
52°
7
63°
46°
8
69°
40°
9
68°
53°
10
76°
53°
11
68°
49°
12
74°
46°
13
76°
53°
14
57°
43°
15
70°
41°
16
78°
58°
17
85°
64°
18
88°
67°
19
85°
70°
20
82°
57°
21
65°
58°
22
74°
63°
23
73°
65°
24
76°
64°
25
74°
63°
26
74°
62°
27
74°
60°
28
76°
59°
29
76°
61°
30
77°
61°
31
78°
62°
1
79°
60°
2
78°
56°
3
75°
60°
4
76°
59°
5
76°
61°
6
78°
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 65° to 82°, with overnight lows between 56° and 65°. The average high for May is 76° with an average low of 61°. 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.
