S
M
T
W
T
F
S
26
68°
30°
27
57°
37°
28
54°
39°
29
61°
34°
30
68°
37°
1
64°
39°
2
71°
47°
3
77°
46°
4
75°
43°
5
62°
47°
6
61°
49°
7
60°
46°
8
58°
50°
9
60°
48°
10
66°
50°
11
65°
49°
12
62°
48°
13
65°
51°
14
63°
50°
15
63°
50°
16
65°
48°
17
66°
50°
18
64°
47°
19
58°
46°
20
59°
45°
21
67°
52°
22
67°
51°
23
64°
49°
24
68°
52°
25
68°
50°
26
66°
52°
27
69°
53°
28
70°
54°
29
69°
54°
30
70°
53°
31
71°
54°
1
71°
54°
2
69°
53°
3
70°
54°
4
69°
52°
5
69°
53°
6
68°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Port Townsend
Port Townsend's May 2026 forecast shows daily high temperatures ranging from 58° to 71°, with overnight lows between 45° and 54°. The average high for May is 66° with an average low of 50°. 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 Townsend. See also: June | July | August.
