 Dangerous heat and threat for thunderstorms over the weekend. It's mostly cloudy tonight, only a slim chance for rain, and it stays warm with lows in the low to mid-70s. Partly sunny and very hot Saturday. Highs climb into the low to mid-90s. The heat index near 110, only a slim chance for rain. But showers and storms are more likely on Sunday. High temperatures stay in the low to mid-90s. For the North Carolina News Network, I'm meteorologist Amy Wilmoth in the Weather Center.