Philadelphia weather: Rounds of storms expected ahead of gorgeous weekend

PHILADELPHIA - A muggy Wednesday with dense cloud cover has set the tone as rounds of rain move west to east into the Delaware Valley overnight.

A tornado warning was issued twice for New Castle County, Delaware Wednesday evening as heavy rain embedded in the thunderstorms moved in.

Tornado warned storms did leave significant damage outside of Baltimore, Maryland.

The torrential rainfall may possibly become a flash flooding threat. Forecasters say more bouts of thunder and lightning may be seen overnight. 

A similar weather day is expected on Thursday with bouts of afternoon showers. Temperatures will start muggy and turn cooler when the rain moves in. There is a marginal threat for isolated severe storms Thursday, with the threat of damaging winds and possibly some hail.

The cold front will drop temperatures ahead of the weekend and stamp out the uncomfortable humidity. 

Sunshine will return for the weekend with sunshine and temperatures in the low 80s lates from Friday to Sunday.