S
M
T
W
T
F
S
26
81°
53°
27
82°
59°
28
81°
63°
29
78°
66°
30
76°
63°
31
83°
60°
1
85°
68°
2
81°
71°
3
81°
66°
4
81°
66°
5
82°
69°
6
80°
68°
7
80°
68°
8
81°
66°
9
80°
65°
10
81°
64°
11
77°
62°
12
76°
61°
13
75°
61°
14
73°
60°
15
75°
57°
16
73°
57°
17
79°
59°
18
77°
57°
19
76°
63°
20
78°
60°
21
76°
57°
22
75°
61°
23
80°
64°
24
81°
64°
25
80°
63°
26
78°
62°
27
72°
62°
28
72°
63°
29
77°
61°
30
78°
62°
31
78°
62°
1
77°
57°
2
70°
54°
3
69°
54°
4
69°
53°
5
70°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Brewster
Brewster's August 2026 forecast shows daily high temperatures ranging from 69° to 85°, with overnight lows between 53° and 71°. The average high for August is 77° with an average low of 62°. 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 Brewster. See also: September | October | November.