S
M
T
W
T
F
S
26
68°
39°
27
57°
37°
28
59°
42°
29
61°
42°
30
60°
39°
1
62°
41°
2
64°
44°
3
65°
49°
4
69°
50°
5
72°
51°
6
73°
51°
7
68°
47°
8
71°
48°
9
73°
51°
10
73°
52°
11
74°
54°
12
75°
54°
13
73°
47°
14
65°
44°
15
70°
47°
16
68°
46°
17
66°
45°
18
70°
48°
19
69°
46°
20
74°
52°
21
71°
56°
22
74°
47°
23
74°
46°
24
69°
46°
25
70°
48°
26
70°
47°
27
71°
50°
28
74°
57°
29
75°
55°
30
74°
58°
31
78°
58°
1
78°
51°
2
74°
51°
3
71°
50°
4
74°
52°
5
77°
57°
6
80°
61°
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 57° to 80°, with overnight lows between 37° and 61°. The average high for May is 70° with an average low of 49°. 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.