Hourly Weather Forecast for Port St. Lucie, Florida

Hourly Weather | Today › Friday, February 6, 2026

Active Weather Warnings

Cold Weather Advisory

Port St. Lucie, Florida

1 AM

50°

Feels Like 45°

Humidity: 83%

UV Index: 0

Wind: 9 mph

2 AM

50°

Feels Like 45°

Humidity: 88%

UV Index: 0

Wind: 8 mph

3 AM

50°

Feels Like 45°

Humidity: 91%

UV Index: 0

Wind: 8 mph

4 AM

50°

Feels Like 46°

Humidity: 91%

UV Index: 0

Wind: 8 mph

5 AM

50°

Feels Like 46°

Humidity: 93%

UV Index: 0

Wind: 8 mph

6 AM

48°

Feels Like 45°

Humidity: 97%

UV Index: 0

Wind: 7 mph

7 AM

46°

Feels Like 45°

Humidity: 99%

UV Index: 0

Wind: 7 mph

8 AM

48°

Feels Like 46°

Humidity: 93%

UV Index: 2

Wind: 8 mph

9 AM

54°

Feels Like 52°

Humidity: 79%

UV Index: 2

Wind: 10 mph

10 AM

59°

Feels Like 59°

Humidity: 64%

UV Index: 4

Wind: 12 mph

11 AM

63°

Feels Like 63°

Humidity: 56%

UV Index: 4

Wind: 13 mph

12 PM

64°

Feels Like 66°

Humidity: 47%

UV Index: 5

Wind: 13 mph

1 PM

66°

Feels Like 70°

Humidity: 40%

UV Index: 4

Wind: 13 mph

2 PM

68°

Feels Like 70°

Humidity: 38%

UV Index: 4

Wind: 14 mph

3 PM

66°

Feels Like 64°

Humidity: 42%

UV Index: 2

Wind: 15 mph

4 PM

64°

Feels Like 61°

Humidity: 47%

UV Index: 2

Wind: 15 mph

5 PM

63°

Feels Like 57°

Humidity: 50%

UV Index: 1

Wind: 15 mph

6 PM

59°

Feels Like 54°

Humidity: 58%

UV Index: 0

Wind: 13 mph

7 PM

55°

Feels Like 50°

Humidity: 66%

UV Index: 0

Wind: 12 mph

8 PM

54°

Feels Like 46°

Humidity: 74%

UV Index: 0

Wind: 10 mph

9 PM

52°

Feels Like 45°

Humidity: 81%

UV Index: 0

Wind: 10 mph

10 PM

50°

Feels Like 45°

Humidity: 84%

UV Index: 0

Wind: 9 mph

11 PM

48°

Feels Like 43°

Humidity: 89%

UV Index: 0

Wind: 9 mph

Hourly Air Quality Forecast - AQI (US EPA)

1 AM

46 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.73 µg/m³
PM₁₀: 7.34 µg/m³
O₃: 0.050 ppm
NO₂: 0.9 ppb
SO₂: 0.2 ppb
CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

2 AM

46 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.8 µg/m³
PM₁₀: 7.27 µg/m³
O₃: 0.050 ppm
NO₂: 0.9 ppb
SO₂: 0.2 ppb
CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

3 AM

45 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.86 µg/m³
PM₁₀: 7.15 µg/m³
O₃: 0.049 ppm
NO₂: 0.9 ppb
SO₂: 0.2 ppb
CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 AM

45 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.9 µg/m³
PM₁₀: 6.97 µg/m³
O₃: 0.048 ppm
NO₂: 0.9 ppb
SO₂: 0.2 ppb
CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 AM

43 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.92 µg/m³
PM₁₀: 6.7 µg/m³
O₃: 0.047 ppm
NO₂: 0.9 ppb
SO₂: 0.2 ppb
CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 AM

41 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.95 µg/m³
PM₁₀: 6.49 µg/m³
O₃: 0.045 ppm
NO₂: 0.9 ppb
SO₂: 0.1 ppb
CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 AM

39 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.01 µg/m³
PM₁₀: 6.38 µg/m³
O₃: 0.043 ppm
NO₂: 1.1 ppb
SO₂: 0.1 ppb
CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 AM

37 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.95 µg/m³
PM₁₀: 6.18 µg/m³
O₃: 0.040 ppm
NO₂: 1.5 ppb
SO₂: 0.1 ppb
CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 AM

37 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.8 µg/m³
PM₁₀: 5.92 µg/m³
O₃: 0.040 ppm
NO₂: 1.6 ppb
SO₂: 0.1 ppb
CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 AM

39 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.76 µg/m³
PM₁₀: 5.78 µg/m³
O₃: 0.042 ppm
NO₂: 1.5 ppb
SO₂: 0.2 ppb
CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 AM

47 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.68 µg/m³
PM₁₀: 5.8 µg/m³
O₃: 0.051 ppm
NO₂: 1 ppb
SO₂: 0.4 ppb
CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

12 PM

50 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4 µg/m³
PM₁₀: 6.29 µg/m³
O₃: 0.054 ppm
NO₂: 0.7 ppb
SO₂: 0.3 ppb
CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

1 PM

56 AQI

Moderate air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.37 µg/m³
PM₁₀: 6.79 µg/m³
O₃: 0.056 ppm
NO₂: 0.5 ppb
SO₂: 0.3 ppb
CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

2 PM

62 AQI

Moderate air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.23 µg/m³
PM₁₀: 6.71 µg/m³
O₃: 0.058 ppm
NO₂: 0.4 ppb
SO₂: 0.3 ppb
CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

3 PM

63 AQI

Moderate air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.88 µg/m³
PM₁₀: 6.4 µg/m³
O₃: 0.058 ppm
NO₂: 0.3 ppb
SO₂: 0.2 ppb
CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

4 PM

61 AQI

Moderate air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.76 µg/m³
PM₁₀: 6.54 µg/m³
O₃: 0.057 ppm
NO₂: 0.3 ppb
SO₂: 0.2 ppb
CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 PM

57 AQI

Moderate air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.88 µg/m³
PM₁₀: 6.99 µg/m³
O₃: 0.056 ppm
NO₂: 0.5 ppb
SO₂: 0.3 ppb
CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 PM

50 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.12 µg/m³
PM₁₀: 7.56 µg/m³
O₃: 0.054 ppm
NO₂: 0.8 ppb
SO₂: 0.3 ppb
CO: 0.12 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 PM

48 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.36 µg/m³
PM₁₀: 8.18 µg/m³
O₃: 0.052 ppm
NO₂: 1 ppb
SO₂: 0.3 ppb
CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 PM

46 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.56 µg/m³
PM₁₀: 8.65 µg/m³
O₃: 0.050 ppm
NO₂: 1.1 ppb
SO₂: 0.2 ppb
CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM

44 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.81 µg/m³
PM₁₀: 9.14 µg/m³
O₃: 0.048 ppm
NO₂: 1.1 ppb
SO₂: 0.2 ppb
CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM

43 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 5.07 µg/m³
PM₁₀: 9.59 µg/m³
O₃: 0.046 ppm
NO₂: 1.1 ppb
SO₂: 0.2 ppb
CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM

41 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 5.12 µg/m³
PM₁₀: 9.71 µg/m³
O₃: 0.045 ppm
NO₂: 1.1 ppb
SO₂: 0.2 ppb
CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Current Real-Time Air Quality Report

Weather Alerts and Warnings for Port St. Lucie

Moderate Expected Likely

Cold Weather Advisory

Cold Weather Advisory issued February 4 at 11:52PM EST until February 6 at 9:00AM EST by NWS Melbourne FL

Feb 6, 1:00 AM → Feb 6, 9:00 AM

WHAT: Very cold wind chills as low as 26 expected.

WHERE: Coastal Indian River, Coastal Saint Lucie, Coastal
Volusia, Inland Indian River, Inland Martin, Inland Northern
Brevard, Inland Saint Lucie, Inland Southern Brevard, Inland
Volusia, Mainland Northern Brevard, Mainland Southern Brevard,
Northern Brevard Barrier Islands, Northern Lake, Okeechobee,
Orange, Osceola, Seminole, Southern Brevard Barrier Islands, and
Southern Lake.

WHEN: From 1 AM to 9 AM EST Friday.

IMPACTS: Very cold temperatures can lead to hypothermia with
prolonged exposure.

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Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.

Updated: Feb 5, 11:32 PM Source: NWS Alert