S
M
T
W
T
F
S
26
52°
45°
27
51°
49°
28
51°
46°
29
52°
46°
30
51°
47°
31
52°
47°
1
52°
48°
2
53°
47°
3
52°
47°
4
52°
46°
5
53°
47°
6
52°
48°
7
52°
49°
8
53°
48°
9
52°
47°
10
52°
47°
11
53°
46°
12
52°
47°
13
52°
46°
14
53°
46°
15
52°
47°
16
52°
48°
17
53°
48°
18
52°
49°
19
52°
50°
20
53°
50°
21
52°
48°
22
52°
48°
23
54°
49°
24
54°
47°
25
53°
49°
26
53°
49°
27
55°
48°
28
54°
49°
29
56°
47°
30
55°
47°
31
54°
48°
1
53°
47°
2
54°
46°
3
53°
47°
4
52°
48°
5
53°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Umnak
Umnak's August 2026 forecast shows daily high temperatures ranging from 51° to 56°, with overnight lows between 45° 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.
