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Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Unalaska, AK
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September
Average Temperature
High
10°
Feels 7
Low
7°
Feels 3
Average Precipitation
17 Days
Rain amount
103mm
Snow amount
0cm
Content continues below
Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
15°
17
13°
18
11°
19
11°
20
9°
21
12°
22
13°
23
14°
24
17°
25
16°
26
16°
27
16°
28
14°
29
16°
30
16°
Forecast
Wednesday, September 16, 2026
Day
15°
Feels 14
Wind
22 km/h S
Gust
32 km/h
Humidity
64%
P.O.P
20%
Night
10°
Feels 8
Wind
22 km/h S
Gust
33 km/h
Humidity
86%
P.O.P
40%
Rain
~1 mm
Historical Averages
Sep 16
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.