S
M
T
W
T
F
S
26
100°
74°
27
100°
80°
28
91°
76°
29
87°
75°
30
88°
76°
31
86°
70°
1
84°
63°
2
86°
61°
3
90°
65°
4
88°
68°
5
76°
67°
6
86°
69°
7
91°
68°
8
92°
69°
9
97°
77°
10
95°
71°
11
97°
74°
12
96°
77°
13
99°
74°
14
89°
72°
15
87°
72°
16
85°
69°
17
86°
63°
18
93°
68°
19
82°
66°
20
85°
66°
21
90°
65°
22
89°
66°
23
90°
68°
24
88°
67°
25
87°
66°
26
89°
64°
27
87°
60°
28
91°
63°
29
92°
66°
30
90°
65°
31
98°
73°
1
82°
67°
2
79°
60°
3
79°
57°
4
80°
59°
5
80°
63°
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 79° to 98°, with overnight lows between 57° and 73°. The average high for August is 87° with an average low of 65°. 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.
