S
M
T
W
T
F
S
26
81°
62°
27
83°
68°
28
80°
71°
29
84°
69°
30
79°
69°
31
83°
71°
1
83°
73°
2
81°
72°
3
82°
70°
4
81°
69°
5
82°
69°
6
83°
72°
7
84°
71°
8
86°
70°
9
85°
71°
10
84°
70°
11
85°
71°
12
84°
68°
13
81°
72°
14
85°
67°
15
80°
65°
16
78°
64°
17
78°
68°
18
79°
67°
19
78°
65°
20
77°
64°
21
78°
69°
22
81°
68°
23
78°
64°
24
77°
64°
25
76°
65°
26
77°
64°
27
76°
63°
28
77°
63°
29
76°
62°
30
76°
64°
31
81°
69°
1
83°
70°
2
81°
69°
3
77°
65°
4
75°
62°
5
74°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Hewlett Harbor
Hewlett Harbor's August 2026 forecast shows daily high temperatures ranging from 74° to 86°, with overnight lows between 61° and 73°. The average high for August is 80° with an average low of 67°. 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 Hewlett Harbor. See also: September | October | November.