>> temperatures are expected to cool but in the night meantime a number of records have been broken. on september 1 san francisco hit 106. that's an all-time high considering the average is only 70 degrees. back to. >> molly: this is one story worth watching. meanwhile, powerful storm is turning far out in the atlantic days after hurricane harvey devastated southeast texas. adam is in the extreme weather center. >> hurricane irma yesterday a category two storm, now a category three hurricane. and actually they clocked to win 730 miles per hour. it's moving off to the west. it is still a ways out there. it will take a little while before it gets worse heading. here's what it's looking at. it will be running over warmer water. from the category three were expecting to be a category four