S
M
T
W
T
F
S
26
84°
66°
27
91°
68°
28
84°
66°
29
88°
65°
30
85°
70°
1
87°
70°
2
86°
68°
3
80°
63°
4
86°
64°
5
89°
66°
6
90°
66°
7
89°
73°
8
90°
72°
9
91°
73°
10
91°
74°
11
87°
71°
12
87°
67°
13
87°
69°
14
88°
68°
15
89°
71°
16
86°
70°
17
88°
71°
18
87°
69°
19
85°
70°
20
84°
68°
21
88°
71°
22
89°
71°
23
89°
70°
24
87°
71°
25
85°
71°
26
85°
70°
27
86°
71°
28
85°
71°
29
85°
72°
30
86°
72°
31
84°
71°
1
85°
72°
2
85°
73°
3
87°
72°
4
86°
73°
5
86°
73°
6
87°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Manhattan
Manhattan's May 2026 forecast shows daily high temperatures ranging from 84° to 91°, with overnight lows between 67° and 74°. The average high for May is 87° with an average low of 71°. 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 Manhattan. See also: June | July | August.