S
M
T
W
T
F
S
26
91°
69°
27
92°
69°
28
92°
70°
29
91°
70°
30
92°
71°
31
93°
71°
1
92°
70°
2
93°
71°
3
93°
71°
4
94°
72°
5
94°
71°
6
93°
71°
7
94°
70°
8
92°
69°
9
91°
69°
10
91°
68°
11
92°
70°
12
92°
70°
13
93°
69°
14
93°
70°
15
92°
69°
16
91°
68°
17
90°
64°
18
91°
65°
19
91°
63°
20
86°
64°
21
90°
66°
22
87°
65°
23
83°
60°
24
83°
59°
25
84°
59°
26
82°
57°
27
82°
57°
28
83°
56°
29
82°
57°
30
86°
62°
31
88°
64°
1
87°
63°
2
88°
63°
3
88°
62°
4
87°
63°
5
87°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Montauk
Montauk's August 2026 forecast shows daily high temperatures ranging from 82° to 94°, with overnight lows between 56° and 72°. The average high for August is 89° with an average low of 66°. 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 Montauk. See also: September | October | November.
