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