Hourly Weather | Today Tuesday, April 28, 2026
Portsmouth, Virginia
9 PM
Cloudy Night
57°
Feels Like 55°
0
Humidity: 61%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
55°
Feels Like 54°
0
Humidity: 67%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Night
54°
Feels Like 52°
0
Humidity: 73%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3.11 µg/m³
  • PM10: 5.63 µg/m³
  • O3: 0.039 ppm
  • NO2: 2.3 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
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.17 µg/m³
  • PM10: 5.73 µg/m³
  • O3: 0.037 ppm
  • NO2: 2.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.35 µg/m³
  • PM10: 5.86 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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