S
M
T
W
T
F
S
26
79°
52°
27
77°
55°
28
61°
50°
29
61°
43°
30
64°
37°
1
61°
37°
2
61°
43°
3
73°
39°
4
81°
54°
5
61°
46°
6
59°
41°
7
68°
39°
8
64°
52°
9
81°
50°
10
68°
46°
11
77°
45°
12
81°
54°
13
73°
50°
14
75°
48°
15
84°
54°
16
81°
64°
17
86°
68°
18
77°
68°
19
74°
52°
20
65°
52°
21
67°
57°
22
70°
60°
23
76°
56°
24
77°
57°
25
78°
58°
26
79°
60°
27
81°
60°
28
79°
59°
29
78°
56°
30
79°
58°
31
78°
57°
1
82°
62°
2
81°
61°
3
75°
58°
4
74°
55°
5
78°
62°
6
83°
63°
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 65° to 83°, with overnight lows between 52° and 68°. The average high for May is 77° 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.
