It's expected to "cool off" today in Pleasanton and the Tri-Valley with temperatures reaching only 100 degrees by mid-day, some 5 degrees cooler than yesterday's record-breaking 105 degrees, recorded at the Livermore Airport weather station.
The record high temperature for this date was 98 degrees, set in 1948.
The National Weather Service is calling for clear skies with a nighttime low of 56 degrees.
On Thursday, temperatures will continue to drop, with a high of 90 degrees forecast for mid-day.
Temperatures will continue to moderate with temperatures in the low 90s to high 80s and possibly a high of only 79 degrees by next Monday, the Weather Service predicted.
For the first time in the last five days, the Bay Area Air Quality Management District issued no Spare the Air Day alert or today.