Warm, sunny Wednesday in Philly area before rain arrives later this week

You'll want a light jacket heading out the door, and watch for some patchy fog during the morning commute on Wednesday in the Philadelphia region. Once the fog clears, break out the sunglasses! With afternoon temperatures climbing into the mid-70s, nearly 15 degrees above average, it's another great day to grab lunch outside, take a walk or tackle some yard work. Leave the umbrella at home, but don't put it too far away. Our dry stretch is about to end!NEXT big weather changesThursday marks the beginning of a significant pattern change across the Delaware Valley. Clouds increase as a cold front approaches, bringing the chance for showers throughout the day. Despite the clouds, temperatures remain unusually warm, reaching the lower 70s (normal high temp is 60).The bigger weather story develops Thursday night into Friday as a more widespread area of rain moves across the region. Friday looks particularly wet, with periods of heavy rain and even a few thunderstorms possible.