Current Air Quality & Forecast
Air Quality Forecast
December 15 – December 19: The forecast region is transitioning from a high-pressure system and stagnant air to more unstable weather leading into the weekend. Expect cool temperatures between low 50s to upper 60 degrees along coastal areas around the bay. Highs will reach into the low 70s in the San Lorenzo Valley and inland areas, such as southern Monterey County and Pinnacles National Park. As mentioned, stagnant air and calm winds of 3-7 mph, in conjunction with temperature inversions and increased woodsmoke from home heating, will adversely impact air quality overnight to begin the week. The PM2.5 (smoke) AQI may reach MODERATE levels and UNHEALTHY FOR SENSITIVE GROUPS. However, conditions should improve as ventilation increases when stormy weather moves into the region mid-week. Ozone levels should remain within State standards, therefore, the ozone AQI will remain GOOD. Calm winds should also help maintain PM10 (dust) AQIs at GOOD.
Particulate Matter Sensor Network