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.
Today
43°F
Rain Showers Likely
Rain showers likely. Mostly cloudy, with a high near 43. Northwest wind around 25 mph, with gusts as high as 40 mph. Chance of precipitation is 60%.
7-day forecast for Unalaska
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 43°F | Rain Showers Likely | 25 mph NW | 57% |
| Tonight | 38°F | Chance Rain And Snow Showers | 20 to 25 mph W | 52% |
| Wednesday | 40°F | Snow Showers Likely | 20 to 30 mph W | 59% |
| Wednesday Night | 36°F | Snow Showers Likely | 30 mph W | 68% |
| Thursday | 39°F | Rain And Snow Showers Likely | 20 to 30 mph W | 57% |
| Thursday Night | 34°F | Rain And Snow Showers Likely then Mostly Cloudy | 10 to 20 mph W | 57% |
| Friday | 40°F | Mostly Cloudy then Light Snow Likely | 10 mph W | 69% |
| Friday Night | 36°F | Light Snow Likely | 10 to 15 mph NW | 69% |
| Saturday | 40°F | Chance Light Snow | 10 to 15 mph NW | 54% |
| Saturday Night | 35°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 | 69% |
| Monday Night | 35°F | Mostly Cloudy | 10 mph N | 69% |
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 3, 2026.