South Florida is no stranger to the heat, nor the constant heat advisories issued by the National Weather Service. But a warning issued Saturday about the weather calls for a bit more concern. Miami-Dade and Broward counties are under an “excessive heat warning” expected to last until 6 p.m, according to the NWS.

Broward and Miami-Dade counties are under an excessive heat warning Saturday until 6 p.m., the National Weather Service said.

The Los Angeles County Health Officer has extended an excessive heat warning in the Santa Clarita Valley as high temperatures have been forecast through Saturday throughout Los Angeles County

Highs topped out at 121 yesterday missing the record by just one degree! Today will be only modestly cooler. We remain under an Excessive Heat Warning through 8 p.m. High pressure is in place today, but will begin to break down overnight,

On Wednesday at 2:51 a.m. an excessive heat warning was issued by the National Weather Service valid from Thursday noon until Friday 10 p.m. for North Oregon Cascades, Cascades of Marion and Linn counties and Cascades of Lane County.

An “unseasonably” hot Saturday is in store for all of South Florida just eight days before the beginning of fall, forecasters say.