Cooler weather put an end to Sacramento's record string of 47 days with temperatures of 90 degrees or more.
Jason Clapp of the National Weather Service says you may've noticed low clouds hanging around Monday morning on your drive to work.
That happens when an upper level system comes in towards the Pacific coast and thickens up the marine layer.
"Several times in the summer, that marine layer will get thick enough where it'll actually push some of those clouds into the Valley and the cool air will condense and give stratus - low clouds - here in the Valley," says Clapp.
According to the National Weather Service, 1992 was the last year in which downtown Sacramento experienced 40 days in a row with temperatures of 90 degrees or above.
Sacramento's record for number of days with a temperature of 100 degrees or above is 41 from 1988. So far this summer, the city has had 25 days in the hundreds.