 Pepco can help your business save energy and money, upgrade to energy-saving equipment, and get financial incentives of up to 50% off project costs. Learn more at pepco.com slash save more. Rob Stallworth, WTOP Traffic. Steve Rudin with the 7 News First Alert forecast. Heat index values ranging anywhere between 100 and 110 for the remainder of the afternoon. Excessive heat warning until 8 o'clock tonight.