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Dauphin Island, AL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Dauphin Island, a town in Mobile County, Alabama.

Overnight
71°F
Patchy Fog
Patchy fog. Mostly cloudy, with a low around 71. Southwest wind around 5 mph.

7-day forecast for Dauphin Island

WhenTempForecastWindPrecip
Overnight 71°F Patchy Fog 5 mph SW 2%
Wednesday 78°F Patchy Fog then Slight Chance Rain Showers 5 to 10 mph SW 19%
Wednesday Night 67°F Slight Chance Rain Showers then Partly Cloudy 5 mph NW 18%
Thursday 77°F Mostly Sunny 5 mph E 5%
Thursday Night 67°F Partly Cloudy 5 to 10 mph W 1%
Friday 77°F Partly Sunny 5 to 10 mph NW 4%
Friday Night 59°F Partly Cloudy 5 to 15 mph N 1%
Saturday 72°F Mostly Sunny 10 to 15 mph N 0%
Saturday Night 57°F Partly Cloudy 10 to 15 mph N 0%
Sunday 67°F Slight Chance Rain Showers 10 to 15 mph N 15%
Sunday Night 57°F Partly Cloudy 10 to 15 mph N 3%
Monday 68°F Sunny 5 to 15 mph N 5%
Monday Night 58°F Mostly Clear 5 to 10 mph N 7%
Tuesday 69°F Sunny 5 to 10 mph NE 7%

Forecast source: National Weather Service (api.weather.gov) for Dauphin Island (30.251, -88.171). Updated through the day.

Growing snapshot for Dauphin Island

Last spring frost
Jan 31
First fall frost
Jan 6
Growing season
340 days
Hardiness zone
9b

More local growing data for Dauphin Island: nearby ZIP 36528 weather · frost dates · planting calendar · Alabama frost dates

Nearby towns & communities

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Climate data from the nearest NOAA station, Dauphin Is #2, Al (9.6 mi from Dauphin Island). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.