 Here's a look at your Delmarva forecast. A heat advisory continues until 8 p.m. tonight. Slight chance for isolated thunderstorms this afternoon. Otherwise, mainly sunny skies. High temperatures reach up to 99. Winds out of the southwest, 8 to 15 miles per hour. Slight chance for isolated thunderstorms tonight. Lows level off around 78. Partly cloudy skies. High meteorologist Paul Trombley from the Taka of Delmarva Weather Center. Inland.