Hourly Weather | Today Wednesday, May 20, 2026
Active Weather Warnings
Newport Beach, California
4 PM
Sunny Weather
75°
Feels Like 79°
0
Humidity: 54%
UV Index: 5
Wind: 9 mph
5 PM
Sunny Weather
73°
Feels Like 75°
0
Humidity: 56%
UV Index: 3
Wind: 9 mph
6 PM
Cloudy Weather
73°
Feels Like 72°
0
Humidity: 56%
UV Index: 2
Wind: 9 mph
7 PM
Cloudy Weather
72°
Feels Like 70°
0
Humidity: 60%
UV Index: 1
Wind: 8 mph
8 PM
Cloudy Night
70°
Feels Like 66°
0
Humidity: 67%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Night
66°
Feels Like 64°
0
Humidity: 74%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Night
66°
Feels Like 63°
0
Humidity: 79%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Night
64°
Feels Like 64°
0
Humidity: 81%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

4 PM
48 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.56 µg/m³
  • PM10: 23.31 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

5 PM
48 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.6 µg/m³
  • PM10: 24.18 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

6 PM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.84 µg/m³
  • PM10: 25.06 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

7 PM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 10.09 µg/m³
  • PM10: 25.72 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

8 PM
48 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 10.2 µg/m³
  • PM10: 26.04 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

9 PM
47 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 10.1 µg/m³
  • PM10: 25.75 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

10 PM
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.84 µg/m³
  • PM10: 25.11 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

11 PM
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.49 µg/m³
  • PM10: 24.26 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Newport Beach

Air Quality Alert

Air Quality Alert issued May 19 at 11:05PM PDT by NWS San Diego CA
May 19, 11:05 PM May 20, 4:30 PM
Updated: May 20, 3:11 PM Source: NWS Alert