SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SAT., OCT. 03, 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 80 67 0.5 50 13 33 90 2 NW Coastal LA 64 58 0.6 45 13 25 61 3 SW Coastal LA 62 56 0.3 46 16 25 64 4 S Coastal LA 72 68 0.4 42 14 36 93 5 Southeast LA Co 75 67 0.8 46 13 38 90 6 W San Fernando Vly 67 61 0.5 41 8 25 71 7 E San Fernando Vly 72 63 0.5 49 8 29 77 8 W San Gabriel Vly 86 72 0.5 48 9 25 105 9 E San Gabriel Vly 85 76 0.5 30 5 27 118 10 Pomona Walnut Vly 85 72 0.7 37 9 36 105 11 S San Gabriel Vly 78 67 0.5 46 11 38 90 12 S Central LA Co 71 65 0.8 46 14 29 84 13 Santa Clarita Vly 70 64 0.3 43 7 23 80 15 San Gabriel Mts 70 64 0.5 48 7 28 80 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 60 55 0.4 42 12 30 56 Orange County: South Coast Air Basin 16 N Orange Co 73 66 0.3 37 11 23 87 17 Central Orange Co 72 66 1.0 26 13 27 87 18 N Coastal Orange Co 78 70 0.6 32 15 33 100 19 Saddleback Vly 81 70 0.4 37 8 30 100 20 Central Coastal 84 70 0.5 27 14 27 100 21 Capistrano Vly 81 70 0.4 37 16 24 100 Riverside County: South Coast Air Basin 22 Norco/Corona 76 73 0.6 49 10 35 108 23 Metro Riverside Co 79 74 0.6 55 12 36 112 24 Perris Vly 56 55 0.5 43 6 34 51 25 Lake Elsinore 66 59 0.3 27 8 24 64 26 Temecula Vly 53 48 0.2 52 5 22 48 27 Anza Vly 50 47 0.2 62 5 20 54 28 Hemet/San Jacinto 53 50 0.5 40 4 33 46 29 Banning 53 51 0.4 32 3 31 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 59 55 0.2 83 8 18 65 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 47 45 0.2 40 5 16 42 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 77 75 0.5 35 11 29 115 33 SW San Bernardino Vly 76 74 0.7 49 11 39 112 34 C San Bernardino Vly 66 60 0.6 46 8 44 67 35 E San Bernardino Vly 62 58 0.6 44 4 34 61 36 W San Bernardino Mtns 65 62 0.5 34 8 36 74 37 C San Bernardino Mtns 58 54 0.6 42 5 36 50 38 Big Bear Lake 55 53 0.5 38 5 34 49 San Bernardino County: Mojave Desert Air Basin 39 Phelan 61 57 0.5 31 8 33 58 40 Hesperia 51 50 0.5 22 7 37 46 41 Trona 50 46 0.3 32 4 12 43 42 Victorville 54 53 0.5 28 9 34 50 43 Yucca Vly 51 49 0.3 25 6 28 45 44 Barstow 53 50 0.4 27 5 52 49 45 Twentynine Palms 49 47 0.3 30 6 25 44 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SAT., OCT. 03, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Banning Pass Area AQI: 47 Ozone Big Bear Lake AQI: 49 Ozone Central Mojave Desert AQI: 45 Ozone Northern Mojave Desert AQI: 49 NO2 MODERATE in the following area(s): Antelope Valley AQI: 56 PM2.5 Coachella Valley/Low Desert AQI: 65 PM10 Coastal Area AQI: 100 Ozone Hemet/Elsinore Area AQI: 64 Ozone Inland Orange County AQI: 100 Ozone Metropolitan Area AQI: 90 Ozone San Bernardino Mountains AQI: 74 Ozone San Fernando/Santa Clarita Valleys AQI: 80 Ozone San Gabriel Mountains AQI: 80 Ozone Temecula/Anza Area AQI: 54 PM10 Victor Valley AQI: 58 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Riverside Valley AQI: 112 Ozone San Bernardino Valley AQI: 115 Ozone San Gabriel Valley AQI: 118 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ The National Weather Service (NWS) has issued Extreme Heat Warnings that continue to be in effect through 8 PM Thursday (October 8) for Orange County and portions of San Bernardino, Riverside, and Los Angeles Counties including the coasts, valleys, and the Inland Empire. The NWS has also issued Wind Advisories for Saturday from 6 AM to 6 PM for portions of San Bernardino and Riverside Counties including the Inland Empire, the Riverside County Mountains and San Gorgonio Pass near Banning. Some coastal clouds and fog are expected Saturday morning. Inversion Base: 486 FT | Breaking Temperature: 90 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 2163 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: MARGINAL-BURN Burning is prohibited in the following source/receptor areas: 8, 9, 10, 22, 23, 32, 33 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 SATURDAY, OCTOBER 03, 2026 IN THE SOUTH COAST AIR BASIN.