S
M
T
W
T
F
S
26
82°
64°
27
83°
66°
28
83°
62°
29
82°
66°
30
83°
68°
31
86°
67°
1
85°
61°
2
84°
60°
3
82°
62°
4
82°
61°
5
80°
60°
6
82°
60°
7
82°
61°
8
83°
63°
9
82°
66°
10
82°
66°
11
81°
66°
12
81°
66°
13
84°
66°
14
86°
61°
15
86°
61°
16
82°
65°
17
83°
61°
18
82°
60°
19
81°
59°
20
80°
58°
21
79°
63°
22
80°
59°
23
79°
62°
24
81°
65°
25
79°
63°
26
84°
65°
27
84°
65°
28
83°
64°
29
84°
64°
30
83°
58°
31
79°
57°
1
78°
57°
2
77°
58°
3
77°
62°
4
76°
57°
5
81°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Westport
Westport's August 2026 forecast shows daily high temperatures ranging from 76° to 86°, with overnight lows between 57° and 68°. The average high for August is 82° 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 Westport. See also: September | October | November.