A cold front will push across the region tonight, bringing much cooler temperatures for Friday. It will not be as warm as it was today. Also, Saturday will be on the colder side.
Temperatures will bottom out in the 40s for many by Friday morning, but on Saturday morning many could see lows dip into the 30s.
You will need a coat if venturing out Friday and Saturday mornings. The real cold is still set to arrive on Tuesday next week.