 Your WDEL Weather Center forecast. Scattered showers and thunderstorms, mostly this afternoon. Partly sunny today, high around 94 degrees. Heat index is as high as 105. Tonight, scattered showers and thunderstorms, mostly early, partly cloudy, low around 76. Tomorrow, mostly sunny, high near 92. Tomorrow night, partly cloudy, low around 74. Monday, a slight chance of afternoon showers and thunderstorms, partly sunny, high again around 92.