S
M
T
W
T
F
S
26
58°
28°
27
54°
27°
28
65°
28°
29
68°
41°
30
71°
34°
1
76°
35°
2
80°
41°
3
81°
43°
4
80°
40°
5
77°
42°
6
81°
43°
7
75°
45°
8
74°
34°
9
76°
39°
10
84°
40°
11
77°
41°
12
91°
42°
13
69°
46°
14
69°
41°
15
64°
41°
16
55°
37°
17
57°
36°
18
67°
36°
19
69°
32°
20
71°
40°
21
73°
36°
22
77°
38°
23
83°
39°
24
81°
41°
25
83°
46°
26
53°
47°
27
74°
49°
28
82°
45°
29
71°
46°
30
64°
39°
31
66°
39°
1
72°
42°
2
81°
48°
3
79°
50°
4
81°
48°
5
79°
47°
6
74°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Island City
Island City's May 2026 forecast shows daily high temperatures ranging from 64° to 82°, with overnight lows between 39° and 50°. The average high for May is 75° 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 Island City. See also: June | July | August.
