S
M
T
W
T
F
S
26
56°
49°
27
56°
49°
28
55°
48°
29
56°
48°
30
56°
49°
31
55°
49°
1
54°
48°
2
55°
47°
3
56°
49°
4
55°
48°
5
55°
49°
6
54°
48°
7
55°
49°
8
57°
48°
9
56°
49°
10
57°
51°
11
57°
50°
12
Hist. Avg.
60°
49°
13
Hist. Avg.
60°
49°
14
Hist. Avg.
60°
49°
15
Hist. Avg.
60°
49°
16
Hist. Avg.
60°
49°
17
Hist. Avg.
59°
49°
18
Hist. Avg.
59°
49°
19
Hist. Avg.
59°
49°
20
Hist. Avg.
59°
49°
21
Hist. Avg.
59°
49°
22
Hist. Avg.
59°
48°
23
Hist. Avg.
59°
48°
24
Hist. Avg.
59°
48°
25
Hist. Avg.
59°
48°
26
Hist. Avg.
59°
48°
27
Hist. Avg.
58°
48°
28
Hist. Avg.
58°
48°
29
Hist. Avg.
58°
48°
30
Hist. Avg.
58°
48°
31
Hist. Avg.
58°
47°
1
Hist. Avg.
58°
47°
2
Hist. Avg.
58°
47°
3
Hist. Avg.
57°
47°
4
Hist. Avg.
57°
47°
5
Hist. Avg.
57°
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 54° to 57°, with overnight lows between 47° and 51°. The average high for August is 56° with an average low of 49°. 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.
