S
M
T
W
T
F
S
26
95°
70°
27
88°
75°
28
90°
72°
29
88°
72°
30
82°
70°
31
72°
61°
1
79°
63°
2
82°
59°
3
84°
63°
4
70°
54°
5
77°
50°
6
81°
59°
7
73°
57°
8
81°
54°
9
82°
64°
10
81°
63°
11
82°
66°
12
82°
68°
13
77°
64°
14
75°
63°
15
81°
64°
16
77°
57°
17
84°
55°
18
81°
57°
19
77°
55°
20
82°
61°
21
79°
57°
22
77°
50°
23
77°
59°
24
73°
62°
25
84°
57°
26
79°
56°
27
80°
61°
28
79°
57°
29
72°
54°
30
80°
56°
31
78°
58°
1
79°
59°
2
79°
58°
3
76°
53°
4
73°
60°
5
71°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Westbrook
Westbrook's August 2026 forecast shows daily high temperatures ranging from 71° to 84°, with overnight lows between 50° and 62°. The average high for August is 77° with an average low of 57°. 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 Westbrook. See also: September | October | November.