S
M
T
W
T
F
S
26
55°
30°
27
52°
28°
28
57°
34°
29
59°
32°
30
66°
32°
1
73°
36°
2
79°
48°
3
73°
53°
4
60°
41°
5
58°
39°
6
57°
39°
7
57°
39°
8
60°
44°
9
65°
45°
10
64°
49°
11
65°
48°
12
64°
48°
13
62°
49°
14
61°
46°
15
57°
42°
16
64°
50°
17
67°
49°
18
66°
46°
19
59°
45°
20
59°
44°
21
60°
44°
22
58°
45°
23
59°
44°
24
60°
49°
25
66°
49°
26
68°
52°
27
70°
52°
28
68°
51°
29
62°
47°
30
63°
44°
31
66°
52°
1
69°
50°
2
66°
48°
3
62°
48°
4
65°
49°
5
69°
51°
6
70°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Itzehoe
Itzehoe's May 2026 forecast shows daily high temperatures ranging from 57° to 79°, with overnight lows between 39° and 53°. The average high for May is 64° with an average low of 47°. 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 Itzehoe. See also: June | July | August.