Fort Pierce South, FL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fort Pierce South, a community in St. Lucie County, Florida.
Today
84°F
Slight Chance Rain Showers then Mostly Sunny
A slight chance of rain showers before 10am. Mostly sunny. High near 84, with temperatures falling to around 80 in the afternoon. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Fort Pierce South
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 10 mph E | 21% |
| Tonight | 71°F | Partly Cloudy | 0 to 5 mph ENE | 5% |
| Thursday | 84°F | Sunny | 0 to 10 mph NE | 3% |
| Thursday Night | 70°F | Mostly Clear | 0 to 5 mph NNE | 1% |
| Friday | 84°F | Sunny | 0 to 5 mph NNE | 11% |
| Friday Night | 68°F | Partly Cloudy | 0 mph | 11% |
| Saturday | 84°F | Sunny | 0 to 5 mph NNW | 4% |
| Saturday Night | 67°F | Mostly Clear | 0 to 5 mph N | 10% |
| Sunday | 82°F | Sunny | 5 mph N | 8% |
| Sunday Night | 65°F | Partly Cloudy | 0 to 5 mph N | 9% |
| Monday | 78°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 10 mph N | 15% |
| Monday Night | 65°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph NNE | 15% |
| Tuesday | 78°F | Slight Chance Rain Showers | 5 to 10 mph NE | 19% |
| Tuesday Night | 65°F | Slight Chance Rain Showers | 0 to 5 mph N | 19% |
Forecast source: National Weather Service (api.weather.gov) for Fort Pierce South (27.410, -80.354). Updated through the day.
Growing snapshot for Fort Pierce South
Last spring frost
Jan 22
First fall frost
Jan 12
Growing season
365 days
Hardiness zone
10a
More local growing data for Fort Pierce South: nearby ZIP 34981 weather · frost dates · planting calendar · Florida frost dates
Nearby towns & communities
Fort Pierce
Fort Pierce North
Indian River Estates
Lakewood Park
Port St. Lucie
River Park
St. Lucie Village
White City
Climate data from the nearest NOAA station, Ft Pierce, Fl (3.6 mi from Fort Pierce South). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.