 bringing highs over the century mark to more of the northern and southern plains. These temperatures should reach parts of the southeast by Saturday, but some areas of California may have the heat begin to relax by then. The only potential break from sunny skies and the major heat comes in the form of some monsoon thunderstorm activity from the southwest through some areas of the Rockies. Afternoon storms farther east can be focused from Florida westward along the Gulf Coast. In San Francisco, expect a nice day with sunshine and a high near 70.