 Here's a look at your Delmarva forecast. An excessive heat warning begins at 11 a.m. today. Partly cloudy skies today with a slight chance of thunderstorms. High temperatures reach up to 96. Winds out of the southwest, 8 to 15 miles per hour. Mainly cloudy skies expected tonight. Slight chance of thunderstorms. Lows dip down to about 77. I'm meteorologist Paul Trombley from the top of Delmarva Weather Center inland. Right now, 86.