S
M
T
W
T
F
S
26
88°
73°
27
88°
75°
28
88°
77°
29
81°
63°
30
68°
61°
1
64°
53°
2
75°
49°
3
81°
49°
4
83°
57°
5
86°
70°
6
78°
62°
7
69°
59°
8
82°
62°
9
89°
71°
10
90°
64°
11
81°
64°
12
84°
63°
13
90°
63°
14
92°
68°
15
91°
71°
16
91°
76°
17
89°
77°
18
88°
75°
19
89°
71°
20
83°
69°
21
81°
68°
22
82°
67°
23
84°
67°
24
85°
70°
25
84°
69°
26
84°
70°
27
87°
66°
28
88°
71°
29
89°
70°
30
88°
70°
31
83°
69°
1
84°
68°
2
85°
70°
3
86°
69°
4
86°
71°
5
84°
71°
6
86°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in New Katy
New Katy's May 2026 forecast shows daily high temperatures ranging from 81° to 92°, with overnight lows between 66° and 77°. The average high for May is 86° with an average low of 70°. 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 New Katy. See also: June | July | August.
