S
M
T
W
T
F
S
26
78°
52°
27
78°
60°
28
65°
55°
29
63°
44°
30
66°
40°
1
62°
43°
2
61°
43°
3
76°
43°
4
75°
58°
5
71°
46°
6
61°
44°
7
67°
38°
8
72°
49°
9
78°
50°
10
70°
50°
11
76°
43°
12
81°
51°
13
73°
52°
14
73°
46°
15
83°
55°
16
76°
65°
17
86°
63°
18
77°
63°
19
77°
62°
20
66°
54°
21
71°
60°
22
70°
61°
23
77°
64°
24
78°
63°
25
78°
65°
26
82°
66°
27
81°
65°
28
82°
68°
29
81°
66°
30
83°
66°
31
84°
65°
1
82°
62°
2
85°
66°
3
78°
61°
4
77°
59°
5
80°
66°
6
85°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Pontoon Beach
Pontoon Beach's May 2026 forecast shows daily high temperatures ranging from 66° to 85°, with overnight lows between 54° and 68°. The average high for May is 79° with an average low of 64°. 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 Pontoon Beach. See also: June | July | August.
