Today | Weather | Thursday, August 21, 2025

Rip Current Statement (Warning of strong, potentially hazardous rip currents along coastal areas) High Surf Advisory (Warning for dangerously high waves affecting beach and coastal safety)

Weather in Port St. Lucie, Florida

08:16 PM

Now

84° F

Feels Like 91°

Precipitation 46 %

Wind 6 mph

Humidity 73 %

Today

Day 93°

Night 73°

Precipitation 55 %

Wind 5 mph

Other:

A thundershower in spots early this evening; apart from that, clear to partly overcast.

Port St. Lucie Weather Forecast Updated

37 minutes ago

Last updated on August 21, 2025 7:38 PM

Weather Forecast History

Last Year's Weather on This Day (August 21, 2024)

Day

93°

Night

79°

Wind

8 mph

UV Index

Precipitation

Air quality in Port St. Lucie

NOW

47 AQI

Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 3.53 µg/m³

PM10 3.96 µg/m³

O₃ 38.56 ppb

NO₂ 2.01 ppb

SO₂ 0.22 ppb

CO 110.07 ppb

PM_2.5 – Fine particles <2.5μm

PM₁₀ – Inhalable particles <10μm

O₃ – Ozone

NO₂ – Nitrogen dioxide

SO₂ – Sulfur dioxide

CO – Carbon monoxide

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

View Hourly Air Quality Forecast