Gustavus, AK Weather & Growing Conditions
Overnight
48°F
Mostly Cloudy
Mostly cloudy, with a low around 48. West wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Mostly Cloudy | 5 mph W | 1% |
| Tuesday | 65°F | Partly Sunny | 5 mph SW | 1% |
| Tuesday Night | 47°F | Mostly Cloudy | 0 to 5 mph W | 1% |
| Wednesday | 67°F | Mostly Sunny | 0 to 5 mph W | 1% |
| Wednesday Night | 47°F | Partly Cloudy | 0 to 5 mph W | 0% |
| Thursday | 68°F | Mostly Sunny | 0 to 5 mph W | 4% |
| Thursday Night | 49°F | Mostly Cloudy | 0 to 5 mph NW | 5% |
| Friday | 67°F | Mostly Cloudy | 0 to 5 mph SW | 4% |
| Friday Night | 49°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 5 mph NW | 16% |
| Saturday | 63°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 5 mph W | 16% |
| Saturday Night | 50°F | Mostly Cloudy | 0 to 5 mph NW | 5% |
| Sunday | 69°F | Partly Sunny | 0 mph | 5% |
| Sunday Night | 50°F | Mostly Cloudy | 0 mph | 0% |
| Monday | 70°F | Partly Sunny | 0 to 5 mph NW | 0% |
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 Aug 4, 2026.