S
M
T
W
T
F
S
26
68°
52°
27
69°
53°
28
67°
53°
29
69°
52°
30
69°
53°
31
68°
53°
1
68°
52°
2
69°
53°
3
68°
53°
4
67°
52°
5
68°
53°
6
65°
52°
7
66°
53°
8
67°
53°
9
66°
52°
10
66°
52°
11
64°
50°
12
63°
51°
13
64°
52°
14
64°
51°
15
65°
52°
16
64°
51°
17
64°
49°
18
66°
49°
19
69°
48°
20
66°
47°
21
66°
48°
22
65°
51°
23
64°
51°
24
65°
50°
25
65°
53°
26
66°
49°
27
64°
46°
28
64°
47°
29
63°
50°
30
64°
49°
31
69°
47°
1
70°
49°
2
67°
47°
3
64°
47°
4
64°
48°
5
65°
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 63° to 70°, with overnight lows between 46° and 53°. The average high for August is 66° with an average low of 51°. 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.