Louisville's Sunday may bring scattered mid-level clouds in the afternoon before clearing Sunday night, opening the act for a hot week, with highs in the low 90s and heat index values potentially topping 100.

San Jose gets one more sunny day near 79 degrees before a cooler, foggier week settles in.

Sacramento reaches 90 Sunday before a sharp cooldown arrives Monday. Sunny, dry weather follows, with gusty winds adding a fire-weather concern in parts of the region.