S
M
T
W
T
F
S
26
65°
57°
27
62°
55°
28
57°
46°
29
51°
42°
30
57°
45°
31
59°
52°
1
59°
47°
2
75°
47°
3
74°
52°
4
67°
51°
5
60°
48°
6
58°
47°
7
59°
52°
8
61°
52°
9
N/A
10
59°
50°
11
58°
48°
12
57°
47°
13
55°
48°
14
54°
48°
15
52°
49°
16
54°
47°
17
52°
45°
18
55°
48°
19
53°
45°
20
51°
43°
21
53°
50°
22
55°
43°
23
50°
42°
24
52°
47°
25
52°
47°
26
53°
48°
27
52°
49°
28
52°
48°
29
53°
48°
30
51°
49°
31
52°
48°
1
51°
48°
2
51°
47°
3
52°
47°
4
52°
48°
5
53°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Umnak
Umnak's August 2026 forecast shows daily high temperatures ranging from 50° to 59°, with overnight lows between 42° and 50°. The average high for August is 53° 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 Umnak. See also: September | October | November.
