S
M
T
W
T
F
S
26
59°
39°
27
68°
43°
28
55°
46°
29
59°
48°
30
63°
46°
1
72°
46°
2
70°
52°
3
66°
52°
4
54°
43°
5
61°
37°
6
52°
41°
7
54°
45°
8
64°
41°
9
65°
46°
10
53°
33°
11
51°
35°
12
59°
42°
13
57°
40°
14
53°
39°
15
55°
41°
16
55°
44°
17
58°
45°
18
59°
45°
19
60°
46°
20
62°
47°
21
60°
48°
22
60°
48°
23
60°
50°
24
59°
49°
25
60°
50°
26
59°
49°
27
60°
47°
28
59°
46°
29
60°
51°
30
61°
51°
31
61°
50°
1
62°
50°
2
60°
48°
3
61°
50°
4
65°
51°
5
61°
48°
6
60°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Costessey
Costessey's May 2026 forecast shows daily high temperatures ranging from 51° to 65°, with overnight lows between 33° 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 Costessey. See also: June | July | August.
