SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SUN., JUL. 12, 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 64 51 0.5 26 13 14 58 2 NW Coastal LA 51 41 0.3 26 9 12 50 3 SW Coastal LA 48 38 0.1 25 8 15 44 4 S Coastal LA 50 41 0.3 23 8 18 44 5 Southeast LA Co 57 47 0.4 25 11 20 55 6 W San Fernando Vly 67 57 0.4 27 10 10 58 7 E San Fernando Vly 71 60 0.4 29 12 14 67 8 W San Gabriel Vly 71 59 0.3 32 14 14 64 9 E San Gabriel Vly 77 66 0.4 33 11 13 87 10 Pomona Walnut Vly 74 63 0.4 40 12 16 77 11 S San Gabriel Vly 65 53 0.3 29 12 20 56 12 S Central LA Co 54 44 0.2 25 10 15 53 13 Santa Clarita Vly 80 72 0.3 32 12 15 105 15 San Gabriel Mts 74 67 0.3 39 12 16 90 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 71 67 0.3 44 13 12 90 Orange County: South Coast Air Basin 16 N Orange Co 56 47 0.2 32 11 16 55 17 Central Orange Co 49 41 0.3 15 10 10 53 18 N Coastal Orange Co 47 40 0.3 19 6 16 37 19 Saddleback Vly 55 47 0.2 32 6 11 44 20 Central Coastal 49 43 0.2 22 6 11 40 21 Capistrano Vly 49 45 0.3 26 6 9 42 Riverside County: South Coast Air Basin 22 Norco/Corona 66 60 0.3 47 11 10 67 23 Metro Riverside Co 73 66 0.3 52 13 11 87 24 Perris Vly 70 66 0.3 33 15 20 87 25 Lake Elsinore 65 58 0.3 25 13 8 61 26 Temecula Vly 50 46 0.3 32 12 9 56 27 Anza Vly 58 53 0.2 37 6 11 49 28 Hemet/San Jacinto 65 59 0.3 32 12 21 64 29 Banning 78 68 0.3 27 8 17 93 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 61 57 0.2 49 14 12 60 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 46 43 0.2 33 10 11 53 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 78 69 0.4 44 12 15 97 33 SW San Bernardino Vly 71 62 0.4 47 12 19 74 34 C San Bernardino Vly 82 76 0.4 23 12 26 118 35 E San Bernardino Vly 81 75 0.3 32 12 24 115 36 W San Bernardino Mtns 78 68 0.3 39 10 23 93 37 C San Bernardino Mtns 81 73 0.3 34 11 26 108 38 Big Bear Lake 62 58 0.3 33 7 23 61 San Bernardino County: Mojave Desert Air Basin 39 Phelan 67 54 0.3 37 13 25 58 40 Hesperia 67 61 0.3 33 10 28 71 41 Trona 57 55 0.2 36 6 18 51 42 Victorville 75 65 0.3 35 11 28 84 43 Yucca Vly 65 61 0.2 37 10 18 71 44 Barstow 69 61 0.2 29 11 32 71 45 Twentynine Palms 47 44 0.2 36 10 16 53 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SUN., JUL. 12, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Coastal Area AQI: 50 PM2.5 MODERATE in the following area(s): Antelope Valley AQI: 90 Ozone Banning Pass Area AQI: 93 Ozone Big Bear Lake AQI: 61 Ozone Central Mojave Desert AQI: 71 Ozone Coachella Valley/Low Desert AQI: 60 PM2.5 Hemet/Elsinore Area AQI: 87 Ozone Inland Orange County AQI: 53 PM2.5 Metropolitan Area AQI: 58 PM2.5 Northern Mojave Desert AQI: 71 Ozone Riverside Valley AQI: 87 Ozone San Gabriel Mountains AQI: 90 Ozone San Gabriel Valley AQI: 87 Ozone Temecula/Anza Area AQI: 56 PM2.5 Victor Valley AQI: 84 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): San Bernardino Mountains AQI: 108 Ozone San Bernardino Valley AQI: 118 Ozone San Fernando/Santa Clarita Valleys AQI: 105 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ After slight cool down, Sunday will tick up a few degrees in most places. It will likely feel warmer as moisture streaming in from the south with raise humidities. Inversion Base: 1578 FT | Breaking Temperature: 85 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 2590 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: MARGINAL-BURN Burning is prohibited in the following source/receptor areas: 13, 34, 35, 37 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 Above 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 SUNDAY, JULY 12, 2026 IN THE SOUTH COAST AIR BASIN.