S
M
T
W
T
F
S
26
88°
65°
27
87°
63°
28
86°
62°
29
86°
64°
30
85°
63°
31
85°
64°
1
84°
63°
2
85°
62°
3
86°
63°
4
85°
62°
5
84°
62°
6
81°
60°
7
79°
61°
8
80°
61°
9
79°
60°
10
84°
62°
11
83°
60°
12
84°
55°
13
83°
60°
14
84°
62°
15
82°
57°
16
85°
51°
17
75°
50°
18
72°
48°
19
74°
50°
20
75°
51°
21
75°
51°
22
76°
52°
23
76°
57°
24
77°
57°
25
80°
49°
26
74°
48°
27
72°
49°
28
75°
55°
29
81°
58°
30
80°
56°
31
83°
47°
1
73°
48°
2
72°
55°
3
71°
57°
4
78°
47°
5
80°
44°
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 71° to 88°, with overnight lows between 44° and 65°. The average high for August is 80° with an average low of 56°. 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.