S
M
T
W
T
F
S
26
47°
30°
27
47°
36°
28
42°
35°
29
43°
30°
30
42°
26°
1
44°
36°
2
39°
30°
3
42°
32°
4
43°
33°
5
42°
31°
6
37°
28°
7
40°
23°
8
43°
22°
9
45°
26°
10
48°
22°
11
46°
23°
12
47°
25°
13
50°
28°
14
51°
29°
15
54°
31°
16
48°
25°
17
49°
28°
18
48°
26°
19
49°
29°
20
49°
26°
21
50°
26°
22
51°
28°
23
50°
27°
24
51°
29°
25
51°
29°
26
52°
31°
27
52°
32°
28
53°
31°
29
53°
30°
30
54°
32°
31
53°
34°
1
54°
33°
2
55°
34°
3
55°
35°
4
56°
33°
5
56°
32°
6
58°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lagoon
Lagoon's May 2026 forecast shows daily high temperatures ranging from 37° to 58°, with overnight lows between 22° and 35°. The average high for May is 49° with an average low of 29°. 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 Lagoon. See also: June | July | August.
