S
M
T
W
T
F
S
26
49°
39°
27
44°
39°
28
51°
32°
29
52°
31°
30
49°
28°
1
53°
30°
2
69°
32°
3
68°
46°
4
58°
37°
5
47°
30°
6
42°
30°
7
59°
26°
8
70°
38°
9
56°
42°
10
56°
42°
11
69°
31°
12
67°
47°
13
73°
42°
14
78°
50°
15
82°
48°
16
72°
47°
17
71°
47°
18
59°
47°
19
49°
39°
20
60°
32°
21
66°
40°
22
52°
47°
23
62°
48°
24
82°
46°
25
91°
56°
26
89°
60°
27
90°
55°
28
87°
63°
29
85°
58°
30
85°
60°
31
81°
59°
1
85°
56°
2
81°
55°
3
80°
54°
4
77°
56°
5
76°
54°
6
81°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Westport
Westport's May 2026 forecast shows daily high temperatures ranging from 76° to 90°, with overnight lows between 54° and 63°. The average high for May is 83° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Westport. See also: June | July | August.
