Today | Weather | Sunday, December 14, 2025
Active Weather Warnings

Weather in Port St. Lucie, Florida

08:04 AM
Now
Rainy Weather
64° F
Feels Like 64°
Precipitation 66 %
Wind 5 mph
UV Index (0 - 11+) 0
Humidity 100 %
Today
Stormy Weather
Day 81°
Night 63°
Precipitation 87 %
Wind 6 mph
UV Index (0 - 11+) 2

Port St. Lucie Weather Forecast Updated

57 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 14, 2024)
Rainy Weather

Day

75°

Night

68°

Wind

14 mph

Precipitation

96 %

Air Quality in Port St. Lucie

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

Pollutant Concentrations:

PM2.5 4.46 µg/m³
PM10 5.82 µg/m³
O3 0.021 ppm
NO2 1.9 ppb
SO2 0 ppb
CO 0.12 ppm
NH3 0.27 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)
PM2.54.46 µg/m³
PM105.82 µg/m³
O340.6 µg/m³
NO23.59 µg/m³
SO20.12 µg/m³
CO141.04 µg/m³
NH30.27 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for Port St. Lucie

Moderate Expected Likely

Wind Advisory

Wind Advisory issued December 14 at 12:21AM EST until December 15 at 9:00AM EST by NWS Melbourne FL
Dec 14, 7:00 PM Dec 15, 9:00 AM
WHAT: North winds 20 to 25 mph with gusts up to 40 mph expected.
The strongest winds will occur along the immediate coast, such as
the barrier islands.

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

WHEN: From 7 PM this evening to 9 AM EST Monday.

IMPACTS: Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.

ADDITIONAL DETAILS: These strong winds will occur mostly during
the nighttime hours Sunday night into early Monday before
gradually decreasing.
+ Read More
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.
Updated: Dec 14, 7:06 AM Source: NWS Alert