S
M
T
W
T
F
S
26
60°
44°
27
60°
43°
28
62°
43°
29
61°
44°
30
55°
44°
1
56°
42°
2
55°
40°
3
55°
40°
4
54°
42°
5
54°
41°
6
56°
40°
7
57°
41°
8
61°
43°
9
65°
47°
10
65°
48°
11
63°
47°
12
58°
44°
13
57°
44°
14
58°
43°
15
58°
44°
16
57°
42°
17
57°
42°
18
62°
45°
19
61°
44°
20
57°
48°
21
58°
47°
22
58°
50°
23
59°
47°
24
57°
45°
25
57°
44°
26
58°
44°
27
61°
47°
28
64°
48°
29
62°
46°
30
63°
44°
31
61°
51°
1
59°
45°
2
60°
45°
3
65°
48°
4
63°
47°
5
66°
51°
6
68°
53°
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 54° to 68°, with overnight lows between 40° and 53°. The average high for May is 60° with an average low of 45°. 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.
