July 10. It looks like summer is in full swing in North Carolina with thunderstorms after 4 pm today and a high near 93. Heat index values as high as 100​, says the National Weather Service. Saturday will be hot at 92 with less of a chance of storms. Sunday’s high will be near 92, with a chance of showers and thunderstorms late at night. Want to jump in the lake?​ Click here for the current lake temperature. If you want to dive into the full seven-day weather report from the National Weather Service, click here.