S
M
T
W
T
F
S
26
59°
43°
27
63°
45°
28
64°
52°
29
48°
39°
30
52°
34°
1
46°
32°
2
50°
45°
3
62°
45°
4
69°
45°
5
50°
39°
6
43°
38°
7
44°
37°
8
49°
40°
9
54°
41°
10
53°
42°
11
55°
43°
12
56°
43°
13
55°
42°
14
54°
44°
15
61°
43°
16
62°
51°
17
66°
49°
18
59°
48°
19
62°
51°
20
63°
50°
21
62°
41°
22
56°
41°
23
56°
42°
24
57°
42°
25
57°
43°
26
58°
43°
27
57°
44°
28
58°
43°
29
59°
48°
30
60°
53°
31
67°
49°
1
62°
50°
2
66°
54°
3
69°
55°
4
70°
55°
5
71°
56°
6
71°
57°
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 43° to 71°, with overnight lows between 37° and 57°. The average high for May is 59° with an average low of 46°. 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.
