https://www.mercurynews.com/2022/08/30/extreme-heat-wave-expected-to-hit-bay-area-over-labor-day-weekend/

The Bay Area region could experience triple-digit temperatures going into the Labor Day weekend, as a high pressure ridge that originated at the Four Corners continues to build and expand over Nevada and into California.

The conditions have prompted the National Weather Service to issue excessive heat warnings for all of the Bay Area and the Central Coast beginning Saturday and extending through Monday.