S
M
T
W
T
F
S
28
34°
30°
29
35°
33°
30
37°
25°
31
44°
24°
1
47°
34°
2
50°
36°
3
47°
39°
4
51°
39°
5
42°
36°
6
39°
33°
7
41°
32°
8
39°
33°
9
34°
23°
10
28°
23°
11
28°
23°
12
16°
13°
13
23°
19°
14
18°
17°
15
20°
19°
16
38°
33°
17
43°
38°
18
40°
38°
19
43°
38°
20
43°
39°
21
40°
32°
22
38°
30°
23
40°
31°
24
42°
39°
25
45°
39°
26
43°
35°
27
35°
24°
28
24°
19°
29
27°
21°
30
30°
26°
31
31°
28°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Unalaska
Unalaska's January 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for January is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Unalaska. See also: February | March | April.