 Here's the marine forecast from the Tock of Delmarva Weather Center. Heat advisory this afternoon with sunshine at a high of 92 degrees. Current water temperature is at 65 degrees. Small craft advisory today through the rest of the week with south winds 10 to 20, rising seas to 4 to 5 feet tonight. For Rehoboth Beach, 533 p.m. low tide, 1156 p.m. high tide, 615 a.m. low tide. For Cambridge, 241 p.m. low tide, 818 p.m. high tide, 226 a.m. low tide.