(BCN) --- The National Weather Service forecast for the greater San Francisco Bay Area for Sunday calls for mostly sunny to mostly clear skies. Daytime highs will be mostly in the low to high 70s on the coast, in the low 70s to high 80s around the bay, and in the low to mid 80s inland. Overnight l ows will be in the low to high 50s. The NWS expects a long, early-season heat wave that will possibly bring record-breaking temperatures throughout the week. Additionally, a minor HeatRisk advisory has been issued Sunday. Copyright © 2026 Bay City News, Inc. ...read more read less