S
M
T
W
T
F
S
26
64°
43°
27
59°
48°
28
57°
43°
29
63°
41°
30
68°
43°
1
64°
45°
2
61°
43°
3
59°
47°
4
57°
47°
5
55°
44°
6
56°
45°
7
56°
44°
8
57°
45°
9
58°
45°
10
59°
44°
11
58°
48°
12
59°
48°
13
58°
48°
14
60°
47°
15
59°
48°
16
57°
44°
17
58°
43°
18
59°
47°
19
58°
46°
20
58°
45°
21
59°
44°
22
58°
45°
23
59°
49°
24
59°
49°
25
60°
50°
26
60°
49°
27
61°
47°
28
60°
45°
29
59°
44°
30
61°
48°
31
63°
46°
1
61°
46°
2
63°
47°
3
64°
48°
4
63°
46°
5
62°
46°
6
66°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Seaforth
Seaforth's May 2026 forecast shows daily high temperatures ranging from 55° to 66°, with overnight lows between 43° and 51°. The average high for May is 59° 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 Seaforth. See also: June | July | August.
