S
M
T
W
T
F
S
26
47°
30°
27
48°
37°
28
45°
32°
29
49°
26°
30
43°
32°
1
43°
36°
2
44°
37°
3
41°
36°
4
40°
35°
5
44°
37°
6
45°
30°
7
47°
33°
8
50°
36°
9
49°
38°
10
50°
33°
11
50°
33°
12
51°
36°
13
52°
37°
14
55°
36°
15
51°
36°
16
52°
34°
17
51°
38°
18
51°
38°
19
52°
39°
20
54°
38°
21
52°
37°
22
54°
39°
23
53°
40°
24
53°
40°
25
54°
37°
26
54°
37°
27
58°
39°
28
60°
40°
29
61°
42°
30
60°
43°
31
60°
43°
1
61°
42°
2
61°
43°
3
60°
43°
4
62°
44°
5
62°
44°
6
63°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Nikiski
Nikiski's May 2026 forecast shows daily high temperatures ranging from 40° to 63°, with overnight lows between 30° and 45°. The average high for May is 53° 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 Nikiski. See also: June | July | August.
