Today | Weather | Thursday, September 11, 2025

Active Weather Warnings

Rip Current Statement

Weather in Port St. Lucie, Florida

12:31 AM

Now

75° F

Feels Like 82°

Precipitation 36 %

Wind 5 mph

Humidity 92 %

Today

Day 90°

Night 73°

Precipitation 96 %

Wind 11

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

Last updated on September 10, 2025 11:30 PM

Weather Forecast History

Last Year's Weather on This Day (September 11, 2024)

Day

86°

Night

73°

Wind

6 mph

UV Index

Precipitation

Air quality in Port St. Lucie

NOW

34 AQI

Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 5.37 µg/m³

PM10 9.75 µg/m³

O₃ 22.41 ppb

NO₂ 9.94 ppb

SO₂ 0.37 ppb

CO 220.63 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

Weather Alerts and Warnings for Port St. Lucie

Moderate Expected Likely

Rip Current Statement

Rip Current Statement issued September 10 at 3:03PM EDT until September 12 at 4:00AM EDT by NWS Melbourne FL

Sep 10, 3:03 PM → Sep 12, 4:00 AM

WHAT: Dangerous rip currents.

WHERE: Coastal Volusia, Coastal Indian River, Coastal Saint
Lucie, Coastal Martin, Mainland Northern Brevard, Northern
Brevard Barrier Islands, Mainland Southern Brevard and
Southern Brevard Barrier Islands Counties.

WHEN: Through late Thursday night.

IMPACTS: Rip currents can sweep even the best swimmers away
from shore into deeper water.
+ Read More

Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in the sandbar and in the vicinity of structures such as jetties and piers. Heed the advice of lifeguards, beach patrol flags and signs. Entering the surf is strongly discouraged. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.

Updated: Sep 10, 11:30 PM Source: NWS Alert