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