S
M
T
W
T
F
S
26
92°
72°
27
95°
73°
28
95°
70°
29
94°
70°
30
93°
73°
31
95°
73°
1
95°
74°
2
94°
66°
3
96°
63°
4
87°
63°
5
85°
64°
6
86°
65°
7
87°
66°
8
84°
64°
9
85°
65°
10
87°
70°
11
90°
71°
12
93°
72°
13
93°
71°
14
92°
68°
15
91°
67°
16
86°
63°
17
85°
64°
18
87°
63°
19
86°
67°
20
90°
69°
21
92°
70°
22
92°
69°
23
91°
70°
24
91°
70°
25
92°
67°
26
91°
63°
27
84°
66°
28
85°
67°
29
91°
66°
30
Hist. Avg.
87°
62°
31
Hist. Avg.
87°
62°
1
Hist. Avg.
86°
61°
2
Hist. Avg.
86°
61°
3
Hist. Avg.
86°
61°
4
Hist. Avg.
86°
60°
5
Hist. Avg.
85°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Manhattan
Manhattan's August 2026 forecast shows daily high temperatures ranging from 84° to 96°, with overnight lows between 63° and 74°. The average high for August is 90° with an average low of 68°. 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.