The National Weather Service says that temperatures could hit 110 degrees in some inland areas and up to 96 degrees in downtown San Francisco. Because of this, an Excessive Heat Warning is in effect for most of the greater Bay Area until Wednesday night.
By early afternoon on Tuesday, it was in the triple digits in places like Olema Valley in Marin County, which was 104 degrees, and Livermore, which was 100 degrees at 1 p.m.
It will stay hot on Wednesday, and there will be marine winds of 20 to 30 mph. Because of this, the weather service has issued a Red Flag Warning for parts of Monterey County and other nearby areas from 3 a.m. Wednesday to 8 p.m. Thursday.
Because of the expected unhealthy amounts of smog in the area, the Bay Area Air Quality Management District has also sent out a Spare the Air alert for Wednesday. This is the third day in a row that the alerts have been sent out.
The weather service says Wednesday’s high temperatures will reach 108 degrees in Concord, 106 degrees in Livermore, and 104 degrees in San Rafael. On Tuesday and Wednesday, daily high temperature records for this date in October are expected to be broken in many places around the Bay Area.
People who live or visit the area are told by the weather service not to leave children or pets in hot cars, to limit their time outside in the afternoon and evening, and to stay hydrated and take breaks to cool off.
Forecasters say that temperatures will slowly drop later this week, but some interior areas will still have temperatures in the high 90s to low 100s through the weekend. Then, early next week, they expect temperatures to drop across the whole country.
The weather service said Tuesday afternoon, “Simply put, this is a long-lasting heat event, and people need to remember that heat-related illness builds up over time and effects will last.”
