San Diego’s quiet Saturday morning could turn into a dangerous weekend as Tropical Storm Rachel brings heavy rain, flooding and high surf.

A mild Saturday gives Washington one last break before heavy rain and possible thunderstorms arrive Sunday.

A few early showers will give way to partly sunny skies Saturday, followed by a sunny Sunday and Monday. Colder areas south of Seattle could see frost overnight.

Light rain arrives Saturday morning, but Portland's weekend quickly turns sunnier and warmer.

Las Vegas starts Saturday near 90 degrees before storms, flash-flood danger and strong winds move in through Sunday.

El Paso will hit 89 degrees Saturday under mostly sunny skies, but isolated storm chances return Sunday before cooler weather arrives next week.

A warm Saturday will quickly turn stormy in Salt Lake City, with strong winds and a flood watch extending into Monday. Cooler, wetter weather follows through Tuesday.

Denver will bask in sunny 80-degree weather through Monday before a cooler, showery pattern arrives midweek.

Rain, fog, flooding concerns and strong winds are hitting Birmingham Saturday. Then the forecast swings sharply toward sunny skies and highs near 90.

Kansas City is in for an 85-degree sunny weekend and an even warmer Monday. Storm chances build Tuesday before cooler, wetter weather arrives midweek.

Houston will be sunny and near 90 Saturday, but an Ozone Action Day and high rip-current risk add important cautions for outdoor plans.

Chicago warms up through Monday, with highs near 77 Saturday and in the lower to mid-80s Monday. A cold front is expected early Tuesday, with fairly low precipitation chances, before cooler air arrives into the following weekend.

Louisville starts Saturday partly sunny and mild before rain, thunderstorms and strong wind gusts move in. Sunshine and 81-degree warmth return Monday.