S
M
T
W
T
F
S
26
62°
45°
27
74°
41°
28
76°
54°
29
58°
49°
30
53°
38°
1
49°
36°
2
47°
35°
3
61°
30°
4
73°
48°
5
73°
58°
6
60°
45°
7
60°
37°
8
60°
41°
9
70°
51°
10
64°
44°
11
65°
37°
12
69°
39°
13
71°
47°
14
61°
41°
15
70°
35°
16
72°
60°
17
88°
61°
18
90°
65°
19
88°
64°
20
70°
49°
21
65°
48°
22
69°
55°
23
75°
58°
24
74°
60°
25
76°
58°
26
76°
56°
27
79°
58°
28
78°
57°
29
76°
54°
30
79°
60°
31
78°
59°
1
76°
59°
2
77°
60°
3
78°
58°
4
72°
56°
5
72°
56°
6
74°
60°
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 65° to 90°, with overnight lows between 48° and 65°. The average high for May is 76° with an average low of 58°. 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.
