Gustavus, AK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Gustavus, a city in Hoonah-Angoon Census Area County, Alaska.
This Afternoon
46°F
Light Rain
Rain. Cloudy, with a high near 46. East wind around 15 mph. Chance of precipitation is 100%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Gustavus
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 46°F | Light Rain | 15 mph E | 100% |
| Tonight | 38°F | Light Rain | 10 to 20 mph SE | 100% |
| Wednesday | 46°F | Light Rain Likely | 5 to 10 mph NE | 56% |
| Wednesday Night | 39°F | Light Rain | 10 mph SE | 92% |
| Thursday | 46°F | Light Rain | 10 to 15 mph E | 100% |
| Thursday Night | 36°F | Light Rain | 10 to 15 mph SE | 100% |
| Friday | 46°F | Light Rain | 10 to 15 mph SE | 100% |
| Friday Night | 34°F | Light Rain | 10 mph SE | 81% |
| Saturday | 43°F | Light Rain Likely | 5 to 10 mph E | 65% |
| Saturday Night | 27°F | Light Rain Likely | 5 mph NE | 67% |
| Sunday | 42°F | Rain And Snow Likely | 5 to 10 mph E | 67% |
| Sunday Night | 28°F | Light Rain Likely | 5 to 10 mph SE | 65% |
| Monday | 42°F | Rain And Snow Likely | 10 mph E | 67% |
| Monday Night | 28°F | Light Rain Likely | 5 to 10 mph E | 70% |
Forecast source: National Weather Service (api.weather.gov) for Gustavus (58.435, -135.728). Updated through the day.
Growing snapshot for Gustavus
Last spring frost
May 30
First fall frost
Sep 16
Growing season
107 days
More local growing data for Gustavus: nearby ZIP 99826 weather · frost dates · planting calendar · Alaska frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Gustavus, Ak (3.6 mi from Gustavus). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.