Sacramento warms through the week before a cooler weekend arrives.

San Diego starts cloudy Monday, with warmer conditions building through the week and Thursday forecast near 81 degrees.

Morning fog clears into mild, partly sunny weather in Portland before rain arrives Thursday and Friday.

Seattle warms to 70 Monday, but the forecast turns noticeably wetter by Thursday. Rain chances build through the week as fall officially arrives Tuesday.

Low clouds give way to sunshine Monday, but the bigger story is a sharp South Bay warmup through Thursday.

Denver begins Monday, while isolated showers may occur later in the week.

San Francisco faces a cool, cloudy Monday with a chance of morning drizzle before temperatures warm through midweek.

Houston faces 95-degree heat Monday, with a small chance of afternoon storms.

A chance of drizzle and marine-layer clouds will shape Monday morning in Downtown LA before a warming and clearing trend arrives Tuesday.

San Antonio faces another week of upper-90s heat, with only spotty shower and thunderstorm chances.

Salt Lake City sees near-seasonal temperatures Monday, with showers and thunderstorms arriving Tuesday. The rest of the week turns warmer and mostly dry.

El Paso will hit 93 degrees Monday before a major midweek weather shift brings thunderstorms, heavy rain and a Flood Watch.

Chicago faces a cloudy, breezy Monday with drizzle, showers and a high near 64. Dangerous Lake Michigan beach conditions continue through Wednesday.