Port St. Lucie, FL Weather & Growing Conditions
This Afternoon
85°F
Slight Chance Rain Showers
A slight chance of rain showers. Partly sunny. High near 85, with temperatures falling to around 80 in the afternoon. East wind 5 to 10 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 85°F | Slight Chance Rain Showers | 5 to 10 mph E | 18% |
| Tonight | 70°F | Partly Cloudy | 0 to 5 mph NE | 14% |
| Thursday | 85°F | Sunny | 0 to 10 mph NE | 10% |
| Thursday Night | 68°F | Mostly Clear | 0 to 5 mph NNE | 5% |
| Friday | 85°F | Sunny | 0 to 5 mph NNE | 11% |
| Friday Night | 67°F | Mostly Clear | 0 mph | 11% |
| Saturday | 85°F | Sunny | 0 to 5 mph NNW | 2% |
| Saturday Night | 66°F | Mostly Clear | 0 to 5 mph N | 2% |
| Sunday | 83°F | Mostly Sunny | 5 to 10 mph NNE | 7% |
| Sunday Night | 67°F | Mostly Cloudy | 0 to 5 mph NE | 7% |
| Monday | 80°F | Partly Sunny | 5 to 10 mph ENE | 14% |
| Monday Night | 65°F | Mostly Cloudy | 5 mph ENE | 14% |
| Tuesday | 80°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 10 mph ESE | 19% |
| Tuesday Night | 65°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph NNW | 19% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Port St. Lucie, FL
Last spring frost
Jan 23
First fall frost
Jan 18
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, Stuart, Fl (9.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.