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Recommendations are indicative. Consult local advisories if you have health concerns.
Get the latest air quality in Defiance (16633), including PM2.5, PM10, O₃, CO, NO₂, and SO₂ data. This dashboard shows the current AQI and 7-day weather forecast for Defiance, PA. Learn about pollution levels, humidity, wind, and temperature trends to make informed outdoor activity decisions.
Updated daily using real-time data from Open-Meteo. Check this page regularly for live air pollution updates in Defiance and surrounding areas.
Warfordsburg (17267) , Six mile run (16679) , Mount union (17066) , Greencastle (17225) , Dudley (16634) , Mercersburg (17236) , Colver (15927) , Breezewood (15533) ,