 Temperatures climbing well into the 90s once again today and heat index values are possible of up to 109. The excessive heat warning continues until about 8 p.m. tomorrow. Today is expected to be the hottest day of this current stretch, but highs are expected to reach a few degrees above 90 again tomorrow. We have more on the conditions and the forecast coming up. Also tips on coping with this blazing heat, WDEL.com.