S
M
T
W
T
F
S
26
57°
43°
27
68°
49°
28
64°
50°
29
62°
49°
30
61°
48°
1
64°
49°
2
59°
42°
3
59°
48°
4
64°
53°
5
73°
52°
6
63°
47°
7
62°
42°
8
60°
44°
9
62°
48°
10
63°
50°
11
64°
52°
12
63°
51°
13
62°
50°
14
64°
51°
15
66°
53°
16
67°
53°
17
67°
50°
18
68°
57°
19
75°
57°
20
73°
56°
21
69°
57°
22
75°
54°
23
68°
54°
24
71°
55°
25
70°
51°
26
70°
55°
27
68°
56°
28
70°
60°
29
77°
60°
30
76°
59°
31
76°
57°
1
72°
53°
2
70°
53°
3
70°
54°
4
72°
54°
5
71°
55°
6
72°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Port Washington
Port Washington's May 2026 forecast shows daily high temperatures ranging from 59° to 77°, with overnight lows between 42° and 60°. The average high for May is 68° with an average low of 53°. 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 Port Washington. See also: June | July | August.
