S
M
T
W
T
F
S
26
55°
48°
27
54°
49°
28
56°
49°
29
56°
48°
30
55°
49°
31
55°
49°
1
56°
44°
2
55°
50°
3
55°
50°
4
56°
49°
5
56°
50°
6
55°
50°
7
56°
49°
8
56°
50°
9
55°
49°
10
56°
49°
11
55°
48°
12
57°
47°
13
55°
48°
14
56°
49°
15
57°
49°
16
57°
50°
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 44° and 50°. 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.
