Today | Weather | Thursday, December 4, 2025

Weather in Port St. Lucie, Florida

04:29 AM
Now
Cloudy Night
61° F
Feels Like 61°
Precipitation 0 %
Wind 6 mph
Humidity 97 %
Today
Cloudy Weather
Day 79°
Night 63°
Precipitation 1 %
Wind 6 mph
UV Index (0 - 11+) 4

Port St. Lucie Weather Forecast Updated

13 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 4, 2024)
Cloudy Night

Day

70°

Night

46°

Wind

4 mph

Precipitation

3 %

Air Quality in Port St. Lucie

NOW
26 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 6.16 µg/m³
PM10 7.13 µg/m³
O3 0.013 ppm
NO2 3.1 ppb
SO2 0.1 ppb
CO 0.16 ppm
NH3 0.13 µg/m³
NO 0 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)
PM2.56.16 µg/m³
PM107.13 µg/m³
O324.6 µg/m³
NO25.78 µg/m³
SO20.2 µg/m³
CO182.72 µg/m³
NH30.13 µg/m³
NO0 µg/m³