S
M
T
W
T
F
S
26
67°
43°
27
64°
51°
28
59°
49°
29
68°
45°
30
65°
51°
31
70°
43°
1
57°
46°
2
59°
49°
3
56°
53°
4
59°
53°
5
63°
55°
6
61°
53°
7
62°
50°
8
68°
44°
9
57°
50°
10
60°
51°
11
58°
51°
12
61°
52°
13
69°
55°
14
76°
51°
15
60°
53°
16
69°
53°
17
61°
54°
18
60°
51°
19
58°
51°
20
60°
54°
21
58°
52°
22
57°
52°
23
62°
49°
24
59°
45°
25
62°
53°
26
64°
41°
27
63°
35°
28
62°
50°
29
65°
43°
30
59°
36°
31
58°
43°
1
58°
33°
2
62°
32°
3
62°
37°
4
59°
53°
5
61°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Port Nikiski
Port Nikiski's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Port Nikiski. See also: September | October | November.