S
M
T
W
T
F
S
26
59°
39°
27
63°
41°
28
52°
39°
29
55°
34°
30
59°
34°
1
61°
34°
2
61°
46°
3
48°
45°
4
59°
41°
5
52°
39°
6
54°
37°
7
57°
43°
8
59°
45°
9
52°
37°
10
57°
34°
11
54°
37°
12
N/A
13
51°
40°
14
52°
41°
15
55°
41°
16
54°
45°
17
55°
43°
18
59°
46°
19
59°
49°
20
61°
48°
21
61°
47°
22
62°
49°
23
63°
46°
24
61°
47°
25
60°
47°
26
56°
46°
27
56°
46°
28
58°
47°
29
61°
48°
30
58°
48°
31
58°
47°
1
60°
48°
2
59°
48°
3
62°
49°
4
58°
46°
5
57°
44°
6
56°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Port Seton
Port Seton's May 2026 forecast shows daily high temperatures ranging from 51° to 63°, with overnight lows between 40° and 49°. The average high for May is 58° with an average low of 46°. 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 Port Seton. See also: June | July | August.
