S
M
T
W
T
F
S
26
82°
67°
27
81°
67°
28
82°
66°
29
81°
65°
30
78°
63°
31
73°
61°
1
74°
64°
2
73°
65°
3
76°
65°
4
79°
64°
5
77°
66°
6
79°
65°
7
74°
62°
8
73°
65°
9
73°
63°
10
75°
65°
11
76°
65°
12
78°
64°
13
79°
63°
14
80°
64°
15
79°
65°
16
82°
57°
17
79°
55°
18
71°
54°
19
69°
54°
20
71°
55°
21
71°
55°
22
72°
56°
23
71°
55°
24
72°
59°
25
75°
62°
26
77°
54°
27
70°
55°
28
69°
54°
29
72°
60°
30
76°
62°
31
76°
53°
1
70°
51°
2
68°
53°
3
69°
57°
4
72°
60°
5
75°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Alaska
Alaska's August 2026 forecast shows daily high temperatures ranging from 68° to 82°, with overnight lows between 51° and 67°. The average high for August is 75° with an average low of 60°. 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 Alaska. See also: September | October | November.