Hot days, cool nights, and a wildfire smoke warning this weekend

The Bay Area Air Quality Management District has issued a Spare the Air alert for Saturday because of wildfire smoke combined with hot temperatures and vehicle exhaust that are expected to create unhealthy levels of smog in the region.

The National Weather Service has forecast temperatures as high as the 90s around the Bay Area, and that hot weather along with smoke from wildfires elsewhere in the state will likely continue to cause hazy and smoky skies, according to the air district.

In Piedmont, weekend temperatures are expected to reach the low 80s during the day and drop to the mid-to-high 50s overnight, according to the weather service.

The air district issues the Spare the Air alerts when smog pollution is expected to reach unhealthy levels that can cause throat irritation, congestion and other health problems.

“Hot fall temperatures, wildfire smoke and tailpipe exhaust are expected to impact our air quality on Saturday,” air district executive officer Jack Broadbent said in a statement. “If we all drive less this weekend, we can help reduce harmful smog and protect the health of Bay Area residents.”

The district’s latest air quality readings are available at

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