S
M
T
W
T
F
S
26
61°
39°
27
72°
36°
28
64°
36°
29
63°
48°
30
61°
46°
1
64°
39°
2
59°
45°
3
61°
43°
4
73°
37°
5
82°
45°
6
68°
54°
7
64°
45°
8
63°
39°
9
63°
46°
10
73°
48°
11
63°
45°
12
68°
39°
13
73°
46°
14
66°
48°
15
66°
46°
16
82°
41°
17
88°
54°
18
93°
57°
19
95°
63°
20
93°
64°
21
64°
54°
22
70°
50°
23
55°
50°
24
56°
54°
25
75°
56°
26
82°
60°
27
82°
62°
28
78°
54°
29
77°
51°
30
71°
52°
31
70°
53°
1
77°
56°
2
73°
54°
3
79°
58°
4
78°
59°
5
79°
61°
6
80°
55°
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 56° to 82°, with overnight lows between 51° and 62°. The average high for May is 76° with an average low of 56°. 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.
