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°
54°
25
58°
49°
26
61°
50°
27
59°
52°
28
56°
50°
29
61°
46°
30
60°
45°
31
59°
44°
1
58°
46°
2
61°
46°
3
60°
45°
4
61°
46°
5
59°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Nikiski
Nikiski's August 2026 forecast shows daily high temperatures ranging from 56° to 61°, with overnight lows between 44° and 54°. The average high for August is 59° with an average low of 47°. 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 Nikiski. See also: September | October | November.
