S
M
T
W
T
F
S
26
77°
47°
27
74°
54°
28
65°
49°
29
60°
40°
30
59°
37°
1
61°
33°
2
59°
39°
3
72°
42°
4
81°
47°
5
56°
45°
6
58°
40°
7
67°
37°
8
67°
45°
9
80°
49°
10
68°
44°
11
71°
44°
12
83°
50°
13
72°
53°
14
75°
45°
15
80°
55°
16
81°
61°
17
84°
66°
18
76°
63°
19
70°
52°
20
67°
45°
21
71°
48°
22
70°
56°
23
79°
58°
24
82°
59°
25
83°
54°
26
85°
57°
27
89°
60°
28
86°
57°
29
82°
58°
30
83°
56°
31
81°
56°
1
83°
56°
2
87°
56°
3
84°
59°
4
83°
61°
5
89°
64°
6
90°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Middletown
Middletown's May 2026 forecast shows daily high temperatures ranging from 81° to 90°, with overnight lows between 56° and 66°. The average high for May is 85° with an average low of 59°. 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 Middletown. See also: June | July | August.
