S
M
T
W
T
F
S
26
84°
59°
27
83°
71°
28
79°
64°
29
71°
58°
30
66°
51°
1
70°
48°
2
73°
43°
3
78°
42°
4
80°
54°
5
72°
53°
6
57°
49°
7
73°
48°
8
76°
47°
9
85°
55°
10
82°
57°
11
77°
52°
12
81°
47°
13
84°
52°
14
81°
49°
15
90°
55°
16
86°
69°
17
89°
67°
18
86°
71°
19
85°
68°
20
75°
66°
21
80°
61°
22
73°
65°
23
83°
64°
24
78°
66°
25
79°
67°
26
81°
66°
27
83°
67°
28
81°
68°
29
81°
64°
30
83°
63°
31
78°
64°
1
81°
62°
2
82°
61°
3
85°
64°
4
85°
63°
5
92°
77°
6
86°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Happy
Happy's May 2026 forecast shows daily high temperatures ranging from 78° to 92°, with overnight lows between 61° and 77°. The average high for May is 83° with an average low of 66°. 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 Happy. See also: June | July | August.