S
M
T
W
T
F
S
26
58°
43°
27
69°
40°
28
58°
47°
29
58°
51°
30
64°
46°
1
64°
39°
2
59°
44°
3
62°
41°
4
73°
43°
5
81°
59°
6
72°
54°
7
65°
50°
8
67°
42°
9
63°
49°
10
68°
50°
11
63°
47°
12
68°
40°
13
68°
53°
14
59°
50°
15
70°
50°
16
80°
49°
17
86°
58°
18
93°
63°
19
93°
68°
20
89°
67°
21
67°
56°
22
66°
53°
23
54°
49°
24
61°
50°
25
77°
60°
26
77°
65°
27
79°
62°
28
74°
55°
29
77°
54°
30
68°
50°
31
71°
54°
1
75°
55°
2
71°
56°
3
75°
60°
4
80°
61°
5
79°
60°
6
80°
62°
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 68° to 80°, with overnight lows between 50° and 65°. The average high for May is 76° with an average low of 58°. 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.
