High temperatures will reach the upper 90s on Friday, with heat index values spiking up to 107 degrees through the evening. A building high-pressure ridge will push temperatures back into the triple digits this weekend, kicking off an extended period of hot, dry weather. North Texas will see increased humidity, cloud cover and a slight chance of rain on Friday thanks to the remnants of Bertha and a disturbance to the north. The National Weather Service has issued another heat advisory through the evening hours with temperatures in the upper 90s and heat index values up to 107 degrees. Weekend ForecastHigh pressure starts to take over again this weekend, slowly increasing high temperatures back to the triple digits.