S
M
T
W
T
F
S
26
45°
36°
27
40°
33°
28
41°
36°
29
47°
37°
30
49°
38°
1
44°
39°
2
46°
36°
3
39°
34°
4
37°
32°
5
39°
30°
6
43°
26°
7
44°
37°
8
39°
33°
9
38°
34°
10
40°
34°
11
45°
37°
12
45°
40°
13
41°
37°
14
45°
38°
15
48°
39°
16
43°
40°
17
46°
37°
18
46°
35°
19
46°
40°
20
48°
41°
21
43°
38°
22
46°
38°
23
46°
37°
24
44°
36°
25
49°
41°
26
44°
39°
27
43°
39°
28
45°
40°
29
43°
40°
30
44°
37°
31
45°
39°
1
46°
41°
2
47°
42°
3
53°
43°
4
54°
44°
5
51°
44°
6
47°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Dutch Harbor
Dutch Harbor's May 2026 forecast shows daily high temperatures ranging from 44° to 54°, with overnight lows between 37° and 44°. The average high for May is 48° with an average low of 42°. 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 Dutch Harbor. See also: June | July | August.