Hourly Weather Forecast for Jacksonville, North Carolina

Hourly Weather | Today › Tuesday, July 21, 2026

Active Weather Warnings

Heat Advisory

Jacksonville, North Carolina

5 AM

79°

Feels Like 88°

Humidity: 91%

UV Index: 0

Wind: 6 mph

6 AM

77°

Feels Like 86°

Humidity: 95%

UV Index: 0

Wind: 6 mph

7 AM

81°

Feels Like 90°

Humidity: 88%

UV Index: 1

Wind: 7 mph

8 AM

82°

Feels Like 93°

Humidity: 84%

UV Index: 2

Wind: 7 mph

9 AM

84°

Feels Like 97°

Humidity: 77%

UV Index: 3

Wind: 8 mph

10 AM

86°

Feels Like 100°

Humidity: 74%

UV Index: 5

Wind: 9 mph

11 AM

88°

Feels Like 100°

Humidity: 72%

UV Index: 4

Wind: 9 mph

12 PM

90°

Feels Like 102°

Humidity: 70%

UV Index: 5

Wind: 10 mph

1 PM

86°

Feels Like 97°

Humidity: 76%

UV Index: 3

Wind: 10 mph

2 PM

91°

Feels Like 106°

Humidity: 65%

UV Index: 6

Wind: 12 mph

3 PM

90°

Feels Like 102°

Humidity: 70%

UV Index: 4

Wind: 12 mph

4 PM

88°

Feels Like 93°

Humidity: 73%

UV Index: 1

Wind: 13 mph

5 PM

86°

Feels Like 97°

Humidity: 77%

UV Index: 1

Wind: 13 mph

6 PM

86°

Feels Like 97°

Humidity: 77%

UV Index: 1

Wind: 12 mph

7 PM

86°

Feels Like 95°

Humidity: 76%

UV Index: 1

Wind: 12 mph

8 PM

84°

Feels Like 91°

Humidity: 79%

UV Index: 0

Wind: 10 mph

9 PM

82°

Feels Like 91°

Humidity: 82%

UV Index: 0

Wind: 10 mph

10 PM

82°

Feels Like 90°

Humidity: 84%

UV Index: 0

Wind: 10 mph

11 PM

82°

Feels Like 90°

Humidity: 83%

UV Index: 0

Wind: 10 mph

Hourly Air Quality Forecast - AQI (US EPA)

5 AM

24 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.75 µg/m³
PM₁₀: 11.4 µg/m³
O₃: 0.026 ppm
NO₂: 0.4 ppb
SO₂: 0.3 ppb
CO: 0.07 ppm

Health Recommendations:

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

6 AM

24 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.74 µg/m³
PM₁₀: 10.5 µg/m³
O₃: 0.025 ppm
NO₂: 0.4 ppb
SO₂: 0.3 ppb
CO: 0.07 ppm

Health Recommendations:

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

7 AM

23 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.69 µg/m³
PM₁₀: 9.1 µg/m³
O₃: 0.025 ppm
NO₂: 0.5 ppb
SO₂: 0.3 ppb
CO: 0.07 ppm

Health Recommendations:

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

8 AM

22 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.59 µg/m³
PM₁₀: 8.05 µg/m³
O₃: 0.024 ppm
NO₂: 0.5 ppb
SO₂: 0.3 ppb
CO: 0.07 ppm

Health Recommendations:

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

9 AM

23 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.45 µg/m³
PM₁₀: 7.16 µg/m³
O₃: 0.025 ppm
NO₂: 0.6 ppb
SO₂: 0.3 ppb
CO: 0.07 ppm

Health Recommendations:

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

10 AM

25 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.38 µg/m³
PM₁₀: 6.58 µg/m³
O₃: 0.026 ppm
NO₂: 0.5 ppb
SO₂: 0.3 ppb
CO: 0.07 ppm

Health Recommendations:

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

11 AM

27 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.43 µg/m³
PM₁₀: 6.4 µg/m³
O₃: 0.030 ppm
NO₂: 0.3 ppb
SO₂: 0.3 ppb
CO: 0.07 ppm

Health Recommendations:

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

12 PM

30 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.65 µg/m³
PM₁₀: 6.6 µg/m³
O₃: 0.033 ppm
NO₂: 0.3 ppb
SO₂: 0.3 ppb
CO: 0.08 ppm

Health Recommendations:

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

1 PM

32 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.99 µg/m³
PM₁₀: 7.01 µg/m³
O₃: 0.035 ppm
NO₂: 0.3 ppb
SO₂: 0.2 ppb
CO: 0.08 ppm

Health Recommendations:

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

2 PM

34 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.38 µg/m³
PM₁₀: 7.46 µg/m³
O₃: 0.037 ppm
NO₂: 0.3 ppb
SO₂: 0.2 ppb
CO: 0.08 ppm

Health Recommendations:

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

3 PM

35 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.92 µg/m³
PM₁₀: 8.86 µg/m³
O₃: 0.037 ppm
NO₂: 0.3 ppb
SO₂: 0.2 ppb
CO: 0.08 ppm

Health Recommendations:

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

4 PM

35 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.5 µg/m³
PM₁₀: 10.4 µg/m³
O₃: 0.037 ppm
NO₂: 0.3 ppb
SO₂: 0.2 ppb
CO: 0.09 ppm

Health Recommendations:

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

5 PM

34 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.93 µg/m³
PM₁₀: 11.41 µg/m³
O₃: 0.037 ppm
NO₂: 0.3 ppb
SO₂: 0.2 ppb
CO: 0.09 ppm

Health Recommendations:

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

6 PM

34 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.93 µg/m³
PM₁₀: 11.38 µg/m³
O₃: 0.036 ppm
NO₂: 0.3 ppb
SO₂: 0.2 ppb
CO: 0.08 ppm

Health Recommendations:

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

7 PM

33 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.69 µg/m³
PM₁₀: 11.28 µg/m³
O₃: 0.035 ppm
NO₂: 0.3 ppb
SO₂: 0.2 ppb
CO: 0.08 ppm

Health Recommendations:

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

8 PM

32 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.63 µg/m³
PM₁₀: 12.18 µg/m³
O₃: 0.034 ppm
NO₂: 0.3 ppb
SO₂: 0.2 ppb
CO: 0.08 ppm

Health Recommendations:

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

9 PM

31 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.75 µg/m³
PM₁₀: 14.14 µg/m³
O₃: 0.033 ppm
NO₂: 0.3 ppb
SO₂: 0.2 ppb
CO: 0.08 ppm

Health Recommendations:

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

10 PM

30 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.86 µg/m³
PM₁₀: 16.64 µg/m³
O₃: 0.032 ppm
NO₂: 0.3 ppb
SO₂: 0.2 ppb
CO: 0.08 ppm

Health Recommendations:

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

11 PM

29 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.86 µg/m³
PM₁₀: 18.74 µg/m³
O₃: 0.031 ppm
NO₂: 0.3 ppb
SO₂: 0.2 ppb
CO: 0.07 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 Jacksonville

Moderate Expected Likely

Heat Advisory

Heat Advisory issued July 21 at 2:42AM EDT until July 21 at 6:00PM EDT by NWS Newport/Morehead City NC

Jul 21, 12:00 PM → Jul 21, 6:00 PM

WHAT: Heat index values up to 105 expected.

WHERE: Coastal Onslow, Duplin, Inland Onslow, Jones, Lenoir,
Northern Craven, Pamlico, and Southern Craven Counties.

WHEN: From noon today to 6 PM EDT this evening.

IMPACTS: Hot temperatures and high humidity may cause heat
illnesses.

ADDITIONAL DETAILS: Threat for reaching heat index values of 105
or slightly higher in place ahead of afternoon convection (20-45%
PoPs) along afternoon seabreeze. Rain and shade from debris clouds
will quickly cut down heat.

+ Read More

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

Updated: Jul 21, 3:43 AM Source: NWS Alert

Hourly Air Quality Forecast - AQI (US EPA)

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Weather Alerts and Warnings for Jacksonville

Heat Advisory

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