The highest AQ index in Delaware (as of 22:00 EDT) is currently the Sussex County area. Ozone (OZONE) is measuring at 35 (Good). This means air quality is satisfactory, and air pollution poses little or no risk.
Over the next few days, the highest Ozone (OZONE) will be in the Greater New Castle County area. It is forecasted to be Good, meaning air quality is satisfactory, and air pollution poses little or no risk.
Friday, April 17: As a weak cold front gradually departs the region, light northwesterly winds will gradually disperse pollutants and bring cleaner air into Delaware. Additionally, scattered clouds and isolated showers will reduce ozone formation. As a result, AQI levels are anticipated to be high-Good. Saturday, a weak temperature inversion early in the day will reduce mixing over Delaware, and light morning winds will limit pollutant dispersion. However, moderate southeasterly winds will develop in the afternoon ahead of an approaching cold front, dispersing pollutants. Therefore, AQI levels are anticipated to be high-Good. Sunday, as a strong cold front traverses Delaware, gusty northwesterly winds will effectively disperse pollutants, and mostly cloudy skies and rain showers will inhibit ozone production. These conditions are anticipated to lead to Good AQI levels.
| Range | 0 - 50 | 51 - 100 | 101 - 150 | 151 - 200 | 201 - 300 | 301 - 500 |
| Color | ||||||
| Category | Good | Moderate | Unhealthy for Sensitive Groups | Unhealthy | Very Unhealthy | Hazardous |
Last Updated 14 minutes ago
Below is a list of counties in Delaware. Click on any county below and you'll get a list of cities where we provide AQ index forecasts.
| Kent | New Castle | Sussex |