 Here's a look at your Delmarva forecast. A heat advisory begins at 11 a.m. tomorrow and remains in effect until 8 p.m. tomorrow night. Lows dip down to about 78 tonight under mainly clear skies, southwesterly winds 5 to 10 miles per hour. Mainly sunny skies again tomorrow. High temperatures reach up to 99. I'm meteorologist Paul Trombley. From the top of Delmarva Weather Center along the coast, currently 84.