Next round of record-challenging heat on the way for Pacific Northwest; plus, a national park warns visitors not to hike between 10 and 4

The first days of summer will sizzle along the Interstate 5 corridor with temperatures set to return to the 90s F early week. Also, Grand Canyon National Park officials are warning visitors of the dangerous weather conditions that happen on a near daily basis during peak travel season. Learn more about your ad choices. Visit podcastchoices.com/adchoices