S
M
T
W
T
F
S
26
56°
38°
27
66°
43°
28
64°
48°
29
60°
52°
30
59°
43°
1
58°
39°
2
57°
41°
3
58°
41°
4
63°
45°
5
63°
47°
6
68°
47°
7
68°
46°
8
66°
47°
9
65°
48°
10
64°
46°
11
65°
44°
12
65°
48°
13
66°
48°
14
66°
45°
15
65°
45°
16
65°
46°
17
63°
45°
18
65°
45°
19
71°
52°
20
70°
48°
21
67°
46°
22
67°
47°
23
68°
46°
24
69°
49°
25
72°
56°
26
76°
51°
27
69°
49°
28
69°
49°
29
72°
55°
30
78°
57°
31
79°
54°
1
77°
56°
2
79°
59°
3
81°
60°
4
81°
58°
5
80°
53°
6
73°
52°
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 56° to 81°, with overnight lows between 38° and 60°. The average high for May is 68° with an average low of 48°. 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.
