S
M
T
W
T
F
S
26
79°
63°
27
76°
64°
28
83°
65°
29
83°
65°
30
84°
64°
31
83°
65°
1
84°
64°
2
83°
65°
3
84°
64°
4
80°
63°
5
82°
64°
6
82°
64°
7
83°
61°
8
75°
58°
9
75°
59°
10
76°
62°
11
81°
64°
12
81°
64°
13
84°
65°
14
84°
63°
15
82°
62°
16
76°
58°
17
76°
62°
18
76°
62°
19
81°
61°
20
82°
62°
21
83°
61°
22
82°
56°
23
74°
53°
24
74°
53°
25
75°
54°
26
75°
53°
27
76°
52°
28
77°
53°
29
78°
58°
30
77°
59°
31
74°
59°
1
79°
58°
2
80°
54°
3
80°
49°
4
72°
53°
5
71°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Juneau
Juneau's August 2026 forecast shows daily high temperatures ranging from 71° to 84°, with overnight lows between 49° and 65°. The average high for August is 79° 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 Juneau. See also: September | October | November.
