 News Talk 790 WNIS News Time 405. Here's your National Weather Service forecast. A heat advisory in effect from 11 a.m. to 6 p.m. Sunday. For today, partly sunny with showers and thunderstorms likely this afternoon. Highs in the mid-90s. Southwest winds around 10 miles per hour with gusts up to 20. Heat index up to 107. For tonight, showers and thunderstorms, lows around 70. It's 75 in Norfolk, 77 on the peninsula, 79 in New York.