S
M
T
W
T
F
S
26
52°
41°
27
62°
43°
28
61°
45°
29
55°
50°
30
60°
50°
1
58°
48°
2
59°
44°
3
56°
45°
4
61°
47°
5
62°
49°
6
62°
49°
7
61°
48°
8
61°
47°
9
61°
45°
10
62°
45°
11
61°
46°
12
62°
48°
13
61°
47°
14
60°
48°
15
61°
46°
16
61°
46°
17
62°
47°
18
63°
49°
19
64°
48°
20
63°
50°
21
64°
48°
22
65°
51°
23
66°
57°
24
70°
57°
25
69°
54°
26
66°
52°
27
67°
53°
28
69°
56°
29
67°
58°
30
67°
58°
31
68°
59°
1
69°
60°
2
71°
60°
3
69°
59°
4
73°
59°
5
76°
54°
6
74°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Sayville
Sayville's May 2026 forecast shows daily high temperatures ranging from 52° to 76°, with overnight lows between 41° and 60°. The average high for May is 64° with an average low of 51°. 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 Sayville. See also: June | July | August.
