Port St. Lucie, FL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Port St. Lucie, a city in St. Lucie County, Florida.
Today
91°F
Partly Sunny then Showers And Thunderstorms Likely
Showers and thunderstorms likely between noon and 5pm, then showers and thunderstorms. Partly sunny. High near 91, with temperatures falling to around 84 in the afternoon. South wind 0 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Port St. Lucie
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 91°F | Partly Sunny then Showers And Thunderstorms Likely | 0 to 5 mph S | 78% |
| Tonight | 74°F | Showers And Thunderstorms Likely then Mostly Cloudy | 0 to 5 mph SSE | 69% |
| Wednesday | 90°F | Showers And Thunderstorms Likely | 0 to 10 mph E | 60% |
| Wednesday Night | 76°F | Chance Showers And Thunderstorms | 0 to 10 mph E | 49% |
| Thursday | 90°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 15 mph E | 56% |
| Thursday Night | 76°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 to 10 mph E | 56% |
| Friday | 90°F | Showers And Thunderstorms Likely | 5 to 15 mph E | 68% |
| Friday Night | 75°F | Showers And Thunderstorms Likely | 5 to 10 mph ESE | 68% |
| Saturday | 91°F | Showers And Thunderstorms Likely | 5 to 10 mph ESE | 70% |
| Saturday Night | 75°F | Showers And Thunderstorms Likely | 0 to 10 mph ESE | 70% |
| Sunday | 92°F | Chance Showers And Thunderstorms | 0 to 10 mph ESE | 46% |
| Sunday Night | 76°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 10 mph ESE | 46% |
| Monday | 92°F | Sunny then Chance Showers And Thunderstorms | 0 to 10 mph ESE | 40% |
| Monday Night | 75°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph ESE | 40% |
Forecast source: National Weather Service (api.weather.gov) for Port St. Lucie (27.281, -80.388). Updated through the day.
Growing snapshot for Port St. Lucie
Last spring frost
Jan 23
First fall frost
Jan 18
Growing season
365 days
Hardiness zone
10a
More local growing data for Port St. Lucie: nearby ZIP 34953 weather · frost dates · planting calendar · Florida frost dates
Nearby towns & communities
Fort Pierce
Fort Pierce North
Fort Pierce South
Indian River Estates
Lakewood Park
River Park
St. Lucie Village
White City
Climate data from the nearest NOAA station, Stuart, Fl (9.7 mi from Port St. Lucie). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.