S
M
T
W
T
F
S
26
84°
63°
27
85°
68°
28
88°
66°
29
88°
62°
30
87°
62°
31
82°
61°
1
83°
61°
2
84°
62°
3
82°
61°
4
83°
62°
5
84°
65°
6
84°
61°
7
83°
67°
8
86°
67°
9
82°
66°
10
83°
66°
11
82°
64°
12
87°
64°
13
88°
66°
14
87°
66°
15
87°
62°
16
86°
65°
17
82°
59°
18
80°
59°
19
80°
58°
20
81°
61°
21
82°
66°
22
85°
65°
23
87°
65°
24
86°
63°
25
85°
63°
26
79°
65°
27
Hist. Avg.
81°
66°
28
Hist. Avg.
80°
65°
29
Hist. Avg.
80°
65°
30
Hist. Avg.
80°
65°
31
Hist. Avg.
80°
65°
1
Hist. Avg.
80°
64°
2
Hist. Avg.
79°
64°
3
Hist. Avg.
79°
64°
4
Hist. Avg.
79°
64°
5
Hist. Avg.
79°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Westport
Westport's August 2026 forecast shows daily high temperatures ranging from 79° to 88°, with overnight lows between 58° and 68°. The average high for August is 84° with an average low of 63°. 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.