Port St. Lucie, FL Weather & Growing Conditions
This Afternoon
90°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy. High near 90, with temperatures falling to around 84 in the afternoon. East northeast wind around 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 90°F | Chance Showers And Thunderstorms | 10 mph ENE | 41% |
| Tonight | 72°F | Chance Showers And Thunderstorms then Mostly Cloudy | 0 to 5 mph N | 40% |
| Sunday | 90°F | Mostly Sunny then Showers And Thunderstorms Likely | 0 to 5 mph NNE | 64% |
| Sunday Night | 72°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph ENE | 57% |
| Monday | 90°F | Mostly Sunny then Showers And Thunderstorms Likely | 0 to 5 mph NNE | 74% |
| Monday Night | 72°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 5 mph E | 74% |
| Tuesday | 90°F | Showers And Thunderstorms Likely | 0 to 5 mph ESE | 74% |
| Tuesday Night | 73°F | Showers And Thunderstorms Likely | 0 to 5 mph ESE | 74% |
| Wednesday | 90°F | Chance Showers And Thunderstorms | 0 to 5 mph NE | 79% |
| Wednesday Night | 73°F | Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 0 to 5 mph NNE | 79% |
| Thursday | 90°F | Showers And Thunderstorms Likely | 5 to 10 mph NNE | 61% |
| Thursday Night | 73°F | Showers And Thunderstorms Likely | 0 to 10 mph NNE | 61% |
| Friday | 90°F | Chance Showers And Thunderstorms | 5 to 10 mph NNE | 60% |
| Friday Night | 72°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 to 10 mph NNE | 60% |
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 Sep 20, 2026.