Today | Weather | Saturday, August 29, 2026

Weather in Port St. Lucie, Florida

02:22 PM
Now
Stormy Weather
90° F
Feels Like 100°
Precipitation 74 %
Wind 9 mph
UV Index (0 - 11+) 5
Humidity 64 %
Today
Sunny with a Chance of Thunderstorms
Day 90°
Night 75°
Precipitation 95 %
Wind 8 mph
UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Port St. Lucie Weather Forecast Updated

33 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (August 29, 2025)
Stormy Weather

Day

91°

Night

73°

Wind

6 mph

Precipitation

55 %

Air Quality in Port St. Lucie

NOW
26 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.21 µg/m³
PM10 3.97 µg/m³
O3 0.028 ppm
NO2 1.3 ppb
SO2 0.2 ppb
CO 0.10 ppm
NH3 0.09 µg/m³
NO 0.25 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.53.21 µg/m³
PM103.97 µg/m³
O354.39 µg/m³
NO22.37 µg/m³
SO20.52 µg/m³
CO114.23 µg/m³
NH30.09 µg/m³
NO0.25 µg/m³