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Get daily forecasts of air quality and weather factors that affect air pollution potential in the Bay Area.

The Bay Area Air Quality Management District is advising Bay Area residents that although the forecast indicates the region will not exceed the federal health standard for smog, conditions remain elevated for fire danger and potential smoke impacts. 

The Air District is extending an air quality advisory for wildfire smoke through Wednesday, July 27. Winds are forecast to transport smoke from the Oak Fire in Mariposa County into the Bay Area through Wednesday; however, the smoke is expected to remain aloft. Smoky, hazy skies may be visible across the Bay Area and the smell of smoke is possible at higher elevations. Air quality is forecast to be in the good to moderate range on the air quality index and pollutant levels are not expected to exceed the national 24-hour health standard. A Spare the Air Alert is not in effect.

The Air District is issuing the first Spare the Air Alert of 2022 for smog on Friday, June 10. Air quality is forecast to be unhealthy. Very hot inland temperatures, along with motor vehicle exhaust, will create elevated concentrations of ozone, or smog.

The Air District is issuing the second Spare the Air Alert of 2022 for smog for Tuesday, June 21. Air quality is forecast to be unhealthy. Very hot inland temperatures, along with motor vehicle exhaust, will create elevated concentrations of ozone, or smog.

The Air District is calling a Spare the Air Alert for smog for Saturday, October 5. Air quality is forecast to be unhealthy tomorrow. Very high inland temperatures and weak offshore winds, along with motor vehicle exhaust, will create elevated concentrations of ozone, or smog.

The Air District is issuing the first Spare the Air Alert of 2023 for smog for Thursday, April 27. Air quality is forecast to be unhealthy tomorrow. Light winds and hot temperatures, along with motor vehicle exhaust, will create elevated concentrations of ozone, or smog.

The Air District is issuing the first Spare the Air Alert of 2021 for smog on Memorial Day, Monday, May 31. Air quality is forecast to be unhealthy. Light winds and hot temperatures, along with motor vehicle exhaust, will create elevated concentrations of ozone, or smog.

The Air District is issuing a Spare the Air Alert for smog for Tuesday, September 3 through Wednesday, September 4. Air quality is forecast to be unhealthy. High inland temperatures and light winds, combined with motor vehicle exhaust, will create elevated concentrations of ozone, or smog.

The Bay Area Air Quality Management District is issuing a Spare the Air Alert for wildfire smoke for Sunday, June 16, and Monday, June 17. Air quality is forecast to be unhealthy today and tomorrow due to smoke from the Point Fire in northern Sonoma County.

The Air District is issuing a Spare the Air Alert for smog on Tuesday, July 2. Air quality is forecast to be unhealthy. Very high inland temperatures in the 100s and weak afternoon sea breeze, along with motor vehicle exhaust, will create elevated concentrations of ozone, or smog.

The Air District is issuing a Spare the Air Alert for smog on Wednesday, July 10.  Air quality is forecast to be unhealthy. Very high inland temperatures in the 100’s and weak afternoon sea breeze, along with motor vehicle exhaust, will create elevated concentrations of ozone, or smog.

The Bay Area Air Quality Management District is issuing the second Spare the Air Alert for smog on Friday, July 14, 2023. Air quality is forecast to be unhealthy tomorrow, Friday, July 14. Hot inland temperatures, along with motor vehicle exhaust, will create elevated concentrations of ozone, or smog.

The Air District is extending the Spare the Air Alert for smog through Tuesday, September 6. Air quality is forecast to be unhealthy. Ongoing triple-digit temperatures combined with light winds and vehicle exhaust are expected to continue causing unhealthy smog, or ozone, accumulation in the Bay Area.

The Bay Area Air Quality Management District is advising Bay Area residents of the possibility that smoke from the wildfires around California may impact parts of Marin, Napa, Sonoma and Solano counties. Air quality is forecast to be in the good or low moderate category and impacts are expected to be minor.

The Air District is extending a Spare the Air Alert for smog through Thursday, July 11. Air quality is forecast to be unhealthy again. Very high inland temperatures in the 100’s and weak afternoon sea breeze, along with motor vehicle exhaust, will continue to create elevated concentrations of ozone, or smog.

The Air District is extending the Spare the Air Alert for smog through Thursday, September 8. Air quality is forecast to be unhealthy. Continued high pressure over the region will result in clear skies, light winds, and hot temperatures across the Bay Area. These conditions, combined with motor vehicle exhaust, will produce unhealthy ozone levels.

The Air District is extending the Spare the Air Alert for smog through Monday, September 5. Air quality is forecast to be unhealthy. Strong high pressure leading to a triple-digit heat wave, combined with light winds and vehicle exhaust, is expected to continue to cause unhealthy smog, or ozone, accumulation in the Bay Area. 

Today, the Bay Area Air Quality Management District is issuing the first Spare the Air Alert for smog in 2020. Air quality is forecast to be unhealthy tomorrow, Memorial Day, Monday, May 25. Light winds combined with triple-digit inland temperatures and vehicle exhaust are expected to cause unhealthy smog, or ozone, accumulation in the Bay Area.

The Air District is extending the Spare the Air Alert for smog through Wednesday, September 7. Air quality is forecast to be unhealthy. High-pressure over the region will continue to produce clear skies, light winds and very hot temperatures across the Bay Area. These conditions, combined with motor vehicle exhaust, will produce unhealthy ozone levels.