S
M
T
W
T
F
S
26
51°
41°
27
55°
45°
28
51°
43°
29
49°
43°
30
56°
46°
1
59°
46°
2
55°
47°
3
52°
42°
4
63°
49°
5
61°
53°
6
60°
55°
7
61°
45°
8
61°
46°
9
55°
50°
10
59°
50°
11
60°
49°
12
57°
48°
13
59°
50°
14
61°
51°
15
62°
49°
16
63°
50°
17
65°
48°
18
64°
53°
19
63°
52°
20
59°
52°
21
60°
53°
22
60°
53°
23
61°
52°
24
58°
51°
25
60°
52°
26
61°
55°
27
61°
53°
28
62°
53°
29
61°
50°
30
61°
54°
31
62°
56°
1
65°
56°
2
63°
53°
3
63°
57°
4
66°
57°
5
64°
56°
6
64°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Dennis Port
Dennis Port's May 2026 forecast shows daily high temperatures ranging from 55° to 66°, with overnight lows between 45° and 58°. The average high for May is 61° with an average low of 52°. 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 Dennis Port. See also: June | July | August.
