S
M
T
W
T
F
S
26
62°
40°
27
71°
37°
28
66°
37°
29
65°
47°
30
58°
46°
1
64°
45°
2
56°
36°
3
53°
38°
4
65°
44°
5
74°
55°
6
65°
50°
7
60°
40°
8
56°
41°
9
58°
43°
10
60°
49°
11
62°
48°
12
62°
48°
13
60°
46°
14
61°
48°
15
64°
50°
16
65°
49°
17
65°
46°
18
66°
53°
19
73°
54°
20
71°
54°
21
68°
53°
22
74°
50°
23
66°
50°
24
69°
50°
25
68°
48°
26
67°
51°
27
66°
52°
28
68°
56°
29
75°
56°
30
74°
55°
31
74°
54°
1
70°
49°
2
68°
49°
3
67°
50°
4
69°
50°
5
68°
51°
6
69°
50°
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 53° to 75°, with overnight lows between 36° and 56°. The average high for May is 66° with an average low of 49°. 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.
