 Your WDEL Weather Center forecast. Partly cloudy tonight, low around 75 degrees. Tomorrow, mostly sunny, high near 94. Heat index is as high as 101. Partly cloudy tomorrow night, low around 75. Tuesday, a chance of showers and thunderstorms in the afternoon. Partly sunny, high near 93. Tuesday night, a chance of showers and thunderstorms overnight. Mostly cloudy, low around 75. A chance of showers and thunderstorms once again Wednesday. Partly sunny, high near 91.