Eugene/Springfield, Oakridge & Cottage Grove Air Quality Index Air Quality/Weather by Tim Chuey For The Local Area: Eugene/Springfield: The Air Quality Index is 22 in the Good category measuring Ozone. Oakridge: The Air Quality Index is 20 in… Keep Reading Facebook Twitter Google Pinterest You might be interested in Summer started today, but it’s noticeably cooler. Hello Summer! As of 3:07 AM today: It’s Summertime! A chance of isolated showers and thunderstorms this evening.