S
M
T
W
T
F
S
26
68°
50°
27
77°
45°
28
73°
59°
29
66°
48°
30
59°
41°
1
54°
32°
2
56°
29°
3
62°
47°
4
74°
57°
5
73°
49°
6
56°
42°
7
58°
34°
8
59°
46°
9
67°
44°
10
71°
47°
11
69°
50°
12
70°
51°
13
69°
49°
14
66°
39°
15
70°
53°
16
68°
50°
17
72°
56°
18
77°
57°
19
77°
57°
20
76°
58°
21
78°
58°
22
78°
57°
23
77°
57°
24
73°
51°
25
71°
53°
26
77°
59°
27
79°
57°
28
73°
58°
29
74°
56°
30
73°
54°
31
78°
57°
1
73°
53°
2
75°
60°
3
77°
54°
4
73°
52°
5
73°
53°
6
74°
53°
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 54° to 79°, with overnight lows between 29° and 60°. The average high for May is 71° with an average low of 51°. 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.
