S
M
T
W
T
F
S
26
58°
34°
27
54°
34°
28
55°
36°
29
57°
35°
30
58°
36°
1
58°
33°
2
59°
35°
3
58°
35°
4
57°
33°
5
57°
33°
6
59°
34°
7
64°
41°
8
65°
37°
9
63°
43°
10
60°
35°
11
60°
35°
12
61°
36°
13
59°
36°
14
60°
35°
15
62°
37°
16
61°
36°
17
64°
46°
18
69°
37°
19
63°
37°
20
64°
38°
21
65°
47°
22
65°
48°
23
66°
49°
24
75°
50°
25
74°
50°
26
74°
49°
27
76°
51°
28
76°
49°
29
78°
50°
30
78°
50°
31
75°
48°
1
70°
46°
2
69°
49°
3
76°
52°
4
71°
52°
5
73°
53°
6
73°
53°
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 54° to 78°, with overnight lows between 33° and 53°. The average high for May is 65° with an average low of 42°. 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.
