 A few clouds overnight, temperatures into the 70s, and east wind at 5 to 10 miles per hour. For tomorrow, intervals of clouds and sunshine in the morning and more clouds later for the day. Can't rely on an isolated shower or storm, but that humidity will make it feel like 105, so the heat advisory will be in effect from noon until 8 p.m. On 7 News, meteorologist Ron Evans of the Ferschler Weather Center. 83 in Reston, 84 in Bethesda, and 89 on the National Mall at 930.