S
M
T
W
T
F
S
26
54°
37°
27
49°
37°
28
46°
35°
29
47°
35°
30
51°
38°
1
50°
34°
2
53°
33°
3
42°
30°
4
41°
32°
5
33°
30°
6
35°
23°
7
39°
18°
8
35°
26°
9
39°
28°
10
35°
29°
11
47°
31°
12
49°
40°
13
43°
34°
14
43°
31°
15
47°
32°
16
50°
40°
17
51°
38°
18
49°
34°
19
51°
29°
20
53°
38°
21
52°
37°
22
43°
36°
23
43°
34°
24
40°
32°
25
49°
40°
26
42°
35°
27
42°
34°
28
41°
34°
29
44°
33°
30
48°
35°
31
50°
39°
1
54°
38°
2
53°
42°
3
53°
43°
4
54°
42°
5
51°
40°
6
52°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Port Heiden
Port Heiden's May 2026 forecast shows daily high temperatures ranging from 41° to 54°, with overnight lows between 33° and 43°. The average high for May is 49° with an average low of 38°. 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 Heiden. See also: June | July | August.
