Worst air pollution Litchfield, today and tomorrow

On 20 July 2026, overall air quality in Litchfield is fair. AQI is the main air quality indicator at 34.2/100. Pollution peaks around 1:00 PM (O3: 34.2/100).

On 21 July 2026, air quality conditions in Litchfield will be similar to today, with NO2 forecast at fair at 23.4/100. Pollution peaks around 9:00 AM (O3: 46.5/100).

Litchfield's air quality has a clear seasonal rhythm, as frequent frontal systems in spring and fall usually keep the air cleanest then; by contrast, the combination of local heat and imported regional haze peaks during summer. Winter cold fronts tend to clear the air quickly, so extended pollution episodes are relatively uncommon.

It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.

Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.

During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.