Today | Weather | Tuesday, June 9, 2026

Weather in Port St. Lucie, Florida

06:42 PM
Now
Cloudy Weather
84° F
Feels Like 91°
Precipitation 33 %
Wind 10 mph
UV Index (0 - 11+) 1
Humidity 76 %
Today
Stormy Weather
Day 88°
Night 73°
Precipitation 70 %
Wind 7 mph
UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11+

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Port St. Lucie Weather Forecast Updated

23 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (June 9, 2025)
Sunny with a Chance of Thunderstorms

Day

95°

Night

73°

Wind

9 mph

UV Index

11

Precipitation

40 %

Air Quality in Port St. Lucie

NOW
29 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.45 µg/m³
PM10 3.46 µg/m³
O3 0.032 ppm
NO2 1.9 ppb
SO2 0.3 ppb
CO 0.10 ppm
NH3 0.05 µg/m³
NO 0.06 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)
PM2.52.45 µg/m³
PM103.46 µg/m³
O362.51 µg/m³
NO23.55 µg/m³
SO20.8 µg/m³
CO112.99 µg/m³
NH30.05 µg/m³
NO0.06 µg/m³