Unalaska, AK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Unalaska, a city in Aleutians West Census Area County, Alaska.
Tonight
39°F
Chance Rain And Snow Showers
A chance of rain showers before 9pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 39. Northwest wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 40%.
7-day forecast for Unalaska
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 39°F | Chance Rain And Snow Showers | 20 to 25 mph NW | 43% |
| Wednesday | 40°F | Snow Showers Likely | 20 to 25 mph NW | 57% |
| Wednesday Night | 36°F | Snow Showers Likely | 25 to 30 mph W | 56% |
| Thursday | 39°F | Snow Showers Likely | 20 to 25 mph W | 61% |
| Thursday Night | 34°F | Chance Snow Showers | 15 mph W | 44% |
| Friday | 40°F | Chance Snow Showers | 5 to 10 mph S | 43% |
| Friday Night | 36°F | Light Snow Likely | 5 to 15 mph SW | 54% |
| Saturday | 40°F | Chance Light Snow | 10 to 15 mph NW | 54% |
| Saturday Night | 34°F | Chance Light Snow | 5 to 10 mph W | 37% |
| Sunday | 40°F | Rain And Snow Likely | 5 mph S | 70% |
| Sunday Night | 36°F | Light Snow Likely | 5 to 10 mph E | 70% |
| Monday | 40°F | Light Snow Likely | 5 to 10 mph NE | 67% |
| Monday Night | 36°F | Rain And Snow Likely | 10 mph N | 69% |
| Tuesday | 40°F | Light Snow Likely then Mostly Cloudy | 10 to 15 mph NW | 73% |
Forecast source: National Weather Service (api.weather.gov) for Unalaska (53.910, -166.529). Updated through the day.
Growing snapshot for Unalaska
Last spring frost
May 6
First fall frost
Oct 18
Growing season
164 days
More local growing data for Unalaska: nearby ZIP 99692 weather · frost dates · planting calendar · Alaska frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Dutch Harbor, Ak (0.8 mi from Unalaska). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.