 And 270 Southbound continues to roll at speed from Frederick to 495. This is brought to you by Frederick Air and Bryant. Whatever it takes to keep you comfortable, Frederick Air, it's a good call. The 930 WFMD SkyScan forecast for Frederick and surrounding counties for tonight. Barley cloudy, low of 70. On Friday, we have a chance of some showers or thunderstorms to move in before 11. Then they'll continue throughout the rest of the afternoon.