 The 930 WFMD sky scan forecast for Frederick and the surrounding counties. We have a heat advisory from 11 a.m. to 8 p.m. This morning, a clear sky, sun mixed with clouds today, with showers and thunderstorms likely this afternoon and evening. Today's high 98, heat in its 106. Showers and maybe a thunderstorm later tonight, low 72. Partly sunny, maybe a shower Thursday, the high 88.