Port St. Lucie, FL Weather & Growing Conditions
Today
90°F
Partly Sunny then Showers And Thunderstorms Likely
Showers and thunderstorms likely between noon and 5pm, then showers and thunderstorms. Partly sunny. High near 90, with temperatures falling to around 83 in the afternoon. South southwest 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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Partly Sunny then Showers And Thunderstorms Likely | 0 to 5 mph SSW | 77% |
| Tonight | 73°F | Showers And Thunderstorms Likely then Mostly Cloudy | 0 to 5 mph E | 71% |
| Wednesday | 90°F | Showers And Thunderstorms Likely | 0 to 10 mph E | 64% |
| Wednesday Night | 75°F | Chance Showers And Thunderstorms | 0 to 10 mph E | 54% |
| Thursday | 90°F | Showers And Thunderstorms Likely | 5 to 15 mph E | 61% |
| Thursday Night | 75°F | Showers And Thunderstorms Likely | 5 to 10 mph ENE | 61% |
| Friday | 89°F | Showers And Thunderstorms Likely | 10 to 15 mph E | 68% |
| Friday Night | 74°F | Showers And Thunderstorms Likely | 0 to 10 mph ESE | 68% |
| Saturday | 90°F | Showers And Thunderstorms Likely | 5 to 10 mph ESE | 74% |
| Saturday Night | 75°F | Showers And Thunderstorms Likely | 0 to 10 mph ESE | 74% |
| Sunday | 91°F | Sunny then Chance Showers And Thunderstorms | 0 to 10 mph ESE | 50% |
| Sunday Night | 75°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 10 mph ESE | 50% |
| Monday | 91°F | Sunny then Chance Showers And Thunderstorms | 0 to 10 mph ESE | 44% |
| Monday Night | 75°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 10 mph ESE | 44% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Port St. Lucie, FL
Last spring frost
Jan 24
First fall frost
Jan 14
Growing season
365 days
Hardiness zone
10a
Explore more for Port St. Lucie, FL: full frost dates · planting calendar · Florida frost dates
Climate data from the nearest NOAA station, Ft Pierce St Lucie Co Intl Ap, Fl (11.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.