Port St. Joe, FL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Port St. Joe, a city in Gulf County, Florida.
This Afternoon
79°F
Chance Rain Showers
A chance of rain showers. Mostly sunny, with a high near 79. South wind 5 to 15 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Port St. Joe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Chance Rain Showers | 5 to 15 mph S | 44% |
| Tonight | 70°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 5 mph SSE | 21% |
| Thursday | 80°F | Sunny | 0 to 5 mph SSE | 8% |
| Thursday Night | 69°F | Partly Cloudy | 5 mph SW | 9% |
| Friday | 79°F | Partly Sunny | 5 to 10 mph WNW | 9% |
| Friday Night | 62°F | Partly Cloudy | 10 mph NNW | 1% |
| Saturday | 76°F | Sunny | 10 mph NNW | 1% |
| Saturday Night | 55°F | Partly Cloudy | 10 mph N | 1% |
| Sunday | 71°F | Mostly Sunny then Slight Chance Rain Showers | 10 mph NNW | 15% |
| Sunday Night | 54°F | Slight Chance Rain Showers | 10 mph NNW | 15% |
| Monday | 72°F | Mostly Sunny | 10 mph NNE | 12% |
| Monday Night | 53°F | Mostly Clear then Slight Chance Rain Showers | 10 mph NNE | 15% |
| Tuesday | 73°F | Slight Chance Rain Showers | 5 to 10 mph NNE | 15% |
| Tuesday Night | 54°F | Partly Cloudy | 5 mph NNE | 14% |
Forecast source: National Weather Service (api.weather.gov) for Port St. Joe (29.818, -85.309). Updated through the day.
Growing snapshot for Port St. Joe
Last spring frost
Feb 15
First fall frost
Dec 18
Growing season
307 days
Hardiness zone
9b
More local growing data for Port St. Joe: nearby ZIP 32456 weather · frost dates · planting calendar · Florida frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Apalachicola Ap, Fl (17.3 mi from Port St. Joe). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.