 930 WFMD SkyScan forecast for Frederick and surrounding counties. We have isolated showers and thunderstorms for today. It should be sunny and hot with a high near 98 and a heat index at 102. Partly cloudy for this evening with a low around 75. Partly sunny for Tuesday with a high near 96 and a heat index value at 105. PJ's Roofing. When it comes to your roof, they've got you covered. Visit PJsRoofing.com. I'm Holly Vale.