Extreme heat continues throughout the region today as a heat wave is expected to last through Saturday evening. Daytime high temperatures will top out in the mid-to-upper 90s, with heat index values between 105 and 115 degrees expected during the afternoon and evening during the excessive heat warning issued by the National Weather Service. Heat exhaustion is likely, especially with prolonged physical activity outdoors. All residents are reminded to stay hydrated and avoid extended time outside. Relief is on the way late in the weekend, with temperatures cooling a bit by Sunday into the mid to upper 80s, with those conditions continuing into the middle of next week.