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
89°F
Partly Sunny then Showers And Thunderstorms Likely
Showers and thunderstorms likely between noon and 5pm, then showers and thunderstorms. Partly sunny. High near 89, with temperatures falling to around 83 in the afternoon. South southeast wind 0 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Fort Pierce South
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Partly Sunny then Showers And Thunderstorms Likely | 0 to 5 mph SSE | 78% |
| Tonight | 74°F | Showers And Thunderstorms Likely then Mostly Cloudy | 0 to 5 mph SE | 73% |
| Wednesday | 88°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 10 mph E | 56% |
| Wednesday Night | 76°F | Chance Showers And Thunderstorms | 5 mph E | 49% |
| Thursday | 88°F | Chance Showers And Thunderstorms | 5 to 15 mph E | 52% |
| Thursday Night | 76°F | Chance Showers And Thunderstorms | 5 to 10 mph E | 54% |
| Friday | 87°F | Showers And Thunderstorms Likely | 10 to 15 mph E | 67% |
| Friday Night | 75°F | Showers And Thunderstorms Likely | 5 to 10 mph ESE | 64% |
| Saturday | 89°F | Showers And Thunderstorms Likely | 5 to 10 mph ESE | 65% |
| Saturday Night | 76°F | Showers And Thunderstorms Likely | 0 to 10 mph ESE | 65% |
| Sunday | 89°F | Sunny then Chance Showers And Thunderstorms | 0 to 10 mph ESE | 40% |
| Sunday Night | 76°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 10 mph ESE | 40% |
| Monday | 90°F | Sunny then Chance Showers And Thunderstorms | 0 to 10 mph ESE | 34% |
| Monday Night | 75°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 10 mph SE | 34% |
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 Aug 4, 2026.