S
M
T
W
T
F
S
26
100°
74°
27
100°
75°
28
84°
72°
29
87°
73°
30
87°
73°
31
89°
62°
1
83°
63°
2
86°
64°
3
90°
68°
4
91°
69°
5
93°
68°
6
92°
68°
7
91°
72°
8
93°
73°
9
83°
71°
10
87°
72°
11
92°
73°
12
94°
72°
13
87°
68°
14
86°
72°
15
93°
73°
16
94°
72°
17
92°
72°
18
93°
71°
19
93°
71°
20
87°
70°
21
92°
71°
22
93°
71°
23
94°
72°
24
94°
72°
25
93°
73°
26
94°
72°
27
94°
71°
28
92°
71°
29
92°
70°
30
91°
69°
31
90°
69°
1
84°
68°
2
84°
68°
3
87°
67°
4
88°
68°
5
89°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Manhattan
Manhattan's August 2026 forecast shows daily high temperatures ranging from 83° to 100°, with overnight lows between 62° and 75°. The average high for August is 90° with an average low of 70°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Manhattan. See also: September | October | November.
