MYRTLE BEACH, S.C. (WBTW) –Temperatures are above average again this morning, with readings in the upper 50s and lower 60s, which is about 10 to 15 degrees above normal. We’re also dealing with high humidity, light winds, and areas of dense fog across the region. That fog will likely linger until 8 or 9 a.m. Use caution on the roads due to reduced visibility…