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
55°
53°
10
56°
51°
11
56°
47°
12
58°
49°
13
55°
50°
14
61°
50°
15
54°
51°
16
N/A
17
54°
50°
18
58°
49°
19
57°
48°
20
56°
45°
21
54°
49°
22
53°
47°
23
60°
54°
24
59°
56°
25
58°
53°
26
54°
44°
27
52°
51°
28
53°
46°
29
51°
46°
30
54°
47°
31
52°
46°
1
51°
46°
2
51°
45°
3
52°
45°
4
51°
48°
5
51°
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 51° to 60°, with overnight lows between 44° and 56°. The average high for August is 54° with an average low of 48°. 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.
