SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: THU., OCT. 29, 2026 -------------------------------------------------------------------------------- SRA AREA 1-HR 8-HR 8-HR 24-HR 24-HR 1-HR MAX NUMBER OZONE OZONE CO PM10 PM2.5 NO2 AQI PPB PPB PPM UG/M3 UG/M3 PPB -------------------------------------------------------------------------------- Los Angeles County: South Coast Air Basin 1 Central LA Co 50 44 1.0 38 11 24 55 2 NW Coastal LA 47 43 0.4 34 7 24 40 3 SW Coastal LA 43 39 0.2 36 8 25 44 4 S Coastal LA 49 45 0.6 34 12 30 56 5 Southeast LA Co 48 44 1.0 36 10 31 53 6 W San Fernando Vly 48 43 0.6 31 9 16 50 7 E San Fernando Vly 53 47 0.7 37 11 27 55 8 W San Gabriel Vly 55 49 0.4 36 11 30 55 9 E San Gabriel Vly 56 49 0.4 28 8 22 45 10 Pomona Walnut Vly 55 48 0.6 35 9 26 50 11 S San Gabriel Vly 50 44 0.6 36 9 29 50 12 S Central LA Co 48 43 1.0 36 11 31 55 13 Santa Clarita Vly 55 46 0.3 29 10 20 53 15 San Gabriel Mts 55 47 0.5 34 10 29 53 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 54 49 0.3 21 9 32 50 Orange County: South Coast Air Basin 16 N Orange Co 48 44 0.4 31 8 20 44 17 Central Orange Co 43 40 0.5 29 8 20 44 18 N Coastal Orange Co 45 42 0.5 29 6 26 39 19 Saddleback Vly 47 45 0.3 30 5 19 42 20 Central Coastal 44 42 0.3 24 5 17 39 21 Capistrano Vly 45 43 0.4 21 5 12 40 Riverside County: South Coast Air Basin 22 Norco/Corona 57 51 0.6 34 12 21 56 23 Metro Riverside Co 59 53 0.8 35 15 20 62 24 Perris Vly 54 50 0.6 33 15 24 62 25 Lake Elsinore 54 49 0.4 19 13 8 58 26 Temecula Vly 50 46 0.3 24 5 9 43 27 Anza Vly 53 50 0.2 26 5 10 46 28 Hemet/San Jacinto 53 49 0.4 31 9 22 50 29 Banning 56 51 0.3 28 7 16 47 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- SRA AREA 1-HR 8-HR 8-HR 24-HR 24-HR 1-HR MAX NUMBER OZONE OZONE CO PM10 PM2.5 NO2 AQI PPB PPB PPM UG/M3 UG/M3 PPB -------------------------------------------------------------------------------- Riverside County: Salton Sea Air Basin 30 Coachella Vly 55 49 0.1 39 7 11 45 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 44 40 0.2 27 5 11 37 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 59 52 0.6 38 11 17 55 33 SW San Bernardino Vly 56 49 0.6 36 12 24 56 34 C San Bernardino Vly 54 48 0.6 40 13 29 58 35 E San Bernardino Vly 57 50 0.7 36 14 26 60 36 W San Bernardino Mtns 59 52 0.4 34 9 27 50 37 C San Bernardino Mtns 58 53 0.4 37 8 32 49 38 Big Bear Lake 56 52 0.4 33 7 27 48 San Bernardino County: Mojave Desert Air Basin 39 Phelan 59 56 0.4 27 5 34 54 40 Hesperia 54 51 0.4 26 7 35 47 41 Trona 51 47 0.2 19 5 10 44 42 Victorville 55 52 0.4 27 8 36 48 43 Yucca Vly 56 52 0.2 29 5 20 48 44 Barstow 58 45 0.3 25 7 43 42 45 Twentynine Palms 47 43 0.2 29 5 19 40 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON THU., OCT. 29, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Antelope Valley AQI: 50 PM2.5 Banning Pass Area AQI: 47 Ozone Big Bear Lake AQI: 48 Ozone Central Mojave Desert AQI: 48 Ozone Coachella Valley/Low Desert AQI: 45 Ozone Inland Orange County AQI: 44 PM2.5 Northern Mojave Desert AQI: 44 Ozone San Bernardino Mountains AQI: 50 PM2.5 Temecula/Anza Area AQI: 46 Ozone MODERATE in the following area(s): Coastal Area AQI: 56 PM2.5 Hemet/Elsinore Area AQI: 62 PM2.5 Metropolitan Area AQI: 55 PM2.5 Riverside Valley AQI: 62 PM2.5 San Bernardino Valley AQI: 60 PM2.5 San Fernando/Santa Clarita Valleys AQI: 55 PM2.5 San Gabriel Mountains AQI: 53 PM2.5 San Gabriel Valley AQI: 55 PM2.5 Victor Valley AQI: 54 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ An approaching Pacific low pressure system will cool Thursday temperatures down by 1-2 degrees below Wednesday. Skies will be partly cloudy, and onshore winds will be light to moderate. Inversion Base: 3764 FT | Breaking Temperature: 77 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 4091 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: BURN Area 53 - Mojave Desert Air Basin: BURN Area 55 - Salton Sea Air Basin: BURN Beach Fire Ring Wood Burning: Allowed in All Areas Residential Wood Burning: Allowed in All Areas Coachella Valley Rule 403.1 Wind Forecast: Winds Below 25 MPH ------------------------------------------------------------------------ ATTENTION ALL SCHOOLS AND INDUSTRIES THIS IS THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT NO AIR POLLUTION OR HEALTH ADVISIORY EPISODES ARE PREDICTED FOR THURSDAY, OCTOBER 29, 2026 IN THE SOUTH COAST AIR BASIN.