Gustavus, AK Weather & Growing Conditions
Today
39°F
Chance Light Rain
A chance of rain. Mostly cloudy, with a high near 39. North wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 39°F | Chance Light Rain | 5 mph N | 39% |
| Tonight | 33°F | Rain | 0 to 10 mph E | 97% |
| Thursday | 40°F | Light Rain | 5 mph NE | 100% |
| Thursday Night | 32°F | Rain | 5 mph E | 100% |
| Friday | 41°F | Rain | 10 to 15 mph SE | 100% |
| Friday Night | 32°F | Light Rain | 10 to 15 mph SE | 100% |
| Saturday | 38°F | Light Rain Likely | 5 to 10 mph NE | 70% |
| Saturday Night | 27°F | Light Snow Likely | 5 to 10 mph N | 68% |
| Sunday | 36°F | Light Snow Likely | 5 mph NE | 72% |
| Sunday Night | 27°F | Rain And Snow | 5 mph E | 77% |
| Monday | 36°F | Light Snow then Rain | 5 to 10 mph NE | 83% |
| Monday Night | 28°F | Light Snow | 5 to 10 mph E | 83% |
| Tuesday | 37°F | Light Snow then Rain And Snow | 5 mph E | 92% |
| Tuesday Night | 29°F | Light Rain | 5 mph E | 92% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Gustavus, AK
Last spring frost
May 6
First fall frost
Oct 10
Growing season
154 days
Explore more for Gustavus, AK: full frost dates · planting calendar · Alaska frost dates
Climate data from the nearest NOAA station, Glacier Bay, Ak (28 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.