S
M
T
W
T
F
S
26
49°
41°
27
66°
36°
28
64°
36°
29
68°
51°
30
70°
50°
1
68°
45°
2
61°
45°
3
60°
43°
4
76°
44°
5
84°
60°
6
74°
62°
7
66°
47°
8
69°
47°
9
74°
53°
10
84°
51°
11
63°
43°
12
69°
45°
13
76°
51°
14
65°
54°
15
70°
49°
16
83°
48°
17
87°
65°
18
96°
61°
19
93°
70°
20
92°
63°
21
67°
57°
22
61°
56°
23
63°
60°
24
74°
63°
25
72°
62°
26
73°
66°
27
77°
63°
28
77°
63°
29
75°
60°
30
75°
62°
31
80°
64°
1
83°
61°
2
76°
64°
3
74°
66°
4
77°
66°
5
78°
65°
6
78°
66°
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 61° to 93°, with overnight lows between 56° and 70°. The average high for May is 76° with an average low of 63°. 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.
