SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SUN., JUL. 26, 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 65 58 0.6 30 14 24 61 2 NW Coastal LA 52 45 0.4 30 12 11 56 3 SW Coastal LA 50 43 0.7 34 10 14 53 4 S Coastal LA 47 42 0.2 45 9 19 50 5 Southeast LA Co 58 52 0.5 46 11 19 55 6 W San Fernando Vly 82 71 0.4 29 12 17 101 7 E San Fernando Vly 79 71 0.5 31 15 18 101 8 W San Gabriel Vly 71 66 0.4 36 14 12 87 9 E San Gabriel Vly 97 85 0.5 40 11 20 150 10 Pomona Walnut Vly 81 71 0.5 46 12 25 101 11 S San Gabriel Vly 67 62 0.3 46 12 16 74 12 S Central LA Co 48 42 0.2 38 11 14 55 13 Santa Clarita Vly 97 83 0.3 29 12 16 143 15 San Gabriel Mts 86 77 0.4 40 12 18 122 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 90 69 0.3 30 12 16 97 Orange County: South Coast Air Basin 16 N Orange Co 66 62 0.2 50 10 13 74 17 Central Orange Co 55 51 0.6 50 10 11 53 18 N Coastal Orange Co 47 43 0.4 44 7 17 41 19 Saddleback Vly 58 52 0.4 44 5 13 48 20 Central Coastal 56 51 0.4 39 6 13 47 21 Capistrano Vly 60 54 0.3 32 8 12 50 Riverside County: South Coast Air Basin 22 Norco/Corona 75 69 0.5 44 11 15 97 23 Metro Riverside Co 82 75 0.7 45 13 15 115 24 Perris Vly 85 81 0.5 37 11 22 136 25 Lake Elsinore 74 70 0.3 25 10 12 100 26 Temecula Vly 64 58 0.3 38 10 12 61 27 Anza Vly 70 65 0.3 43 6 11 84 28 Hemet/San Jacinto 77 70 0.4 33 9 22 100 29 Banning 74 67 0.3 31 6 18 90 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 84 69 0.3 53 7 10 97 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 53 51 0.2 37 7 12 47 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 98 87 0.5 37 12 17 154 33 SW San Bernardino Vly 82 73 0.5 46 12 24 108 34 C San Bernardino Vly 99 95 0.4 38 11 31 174 35 E San Bernardino Vly 102 95 0.6 39 10 26 174 36 W San Bernardino Mtns 90 81 0.4 37 9 27 136 37 C San Bernardino Mtns 87 81 0.4 36 6 30 136 38 Big Bear Lake 76 72 0.4 34 5 26 105 San Bernardino County: Mojave Desert Air Basin 39 Phelan 81 69 0.3 32 7 30 97 40 Hesperia 75 69 0.4 27 8 33 97 41 Trona 74 69 0.2 37 7 14 97 42 Victorville 75 69 0.3 29 9 33 97 43 Yucca Vly 78 69 0.3 34 6 19 97 44 Barstow 80 69 0.3 27 7 41 97 45 Twentynine Palms 60 60 0.3 35 7 18 67 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SUN., JUL. 26, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... MODERATE in the following area(s): Antelope Valley AQI: 97 Ozone Banning Pass Area AQI: 90 Ozone Central Mojave Desert AQI: 97 Ozone Coachella Valley/Low Desert AQI: 97 Ozone Coastal Area AQI: 56 PM2.5 Inland Orange County AQI: 53 PM2.5 Metropolitan Area AQI: 74 Ozone Northern Mojave Desert AQI: 97 Ozone Temecula/Anza Area AQI: 84 Ozone Victor Valley AQI: 97 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Big Bear Lake AQI: 105 Ozone Hemet/Elsinore Area AQI: 136 Ozone Riverside Valley AQI: 115 Ozone San Bernardino Mountains AQI: 136 Ozone San Fernando/Santa Clarita Valleys AQI: 143 Ozone San Gabriel Mountains AQI: 122 Ozone San Gabriel Valley AQI: 150 Ozone UNHEALTHY in the following area(s): San Bernardino Valley AQI: 174 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ High temperatures will continue on Sunday. Light onshore pressure gradients. Inversion Base: 1527 FT | Breaking Temperature: 91 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 2068 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: NO-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 SUNDAY, JULY 26, 2026 IN THE SOUTH COAST AIR BASIN.