S
M
T
W
T
F
S
26
49°
30°
27
53°
28°
28
58°
32°
29
52°
34°
30
49°
39°
1
48°
36°
2
52°
37°
3
45°
36°
4
47°
39°
5
52°
41°
6
50°
42°
7
46°
40°
8
45°
38°
9
46°
41°
10
49°
38°
11
48°
38°
12
47°
35°
13
47°
41°
14
48°
39°
15
48°
38°
16
49°
38°
17
48°
39°
18
48°
38°
19
50°
43°
20
56°
45°
21
52°
42°
22
50°
41°
23
51°
41°
24
52°
42°
25
52°
42°
26
53°
41°
27
51°
40°
28
52°
47°
29
57°
47°
30
61°
49°
31
57°
46°
1
55°
44°
2
54°
44°
3
54°
45°
4
55°
46°
5
56°
47°
6
56°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Alaska
Alaska's May 2026 forecast shows daily high temperatures ranging from 45° to 61°, with overnight lows between 32° and 49°. The average high for May is 51° with an average low of 41°. 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 Alaska. See also: June | July | August.