S
M
T
W
T
F
S
26
87°
66°
27
88°
65°
28
88°
64°
29
84°
63°
30
85°
64°
31
86°
64°
1
84°
63°
2
82°
61°
3
79°
58°
4
79°
63°
5
83°
63°
6
84°
64°
7
81°
61°
8
78°
57°
9
78°
59°
10
82°
62°
11
86°
63°
12
86°
63°
13
79°
61°
14
77°
61°
15
78°
62°
16
82°
62°
17
85°
61°
18
85°
62°
19
84°
62°
20
85°
63°
21
74°
51°
22
76°
50°
23
74°
55°
24
76°
49°
25
75°
48°
26
73°
49°
27
72°
50°
28
74°
48°
29
73°
52°
30
78°
58°
31
77°
55°
1
76°
55°
2
80°
60°
3
84°
52°
4
80°
49°
5
78°
48°
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 72° to 88°, with overnight lows between 48° and 66°. The average high for August is 80° with an average low of 58°. 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.