SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SUN., AUG. 02, 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 94 73 0.5 35 18 27 108 2 NW Coastal LA 54 48 0.3 33 12 12 56 3 SW Coastal LA 48 42 0.1 34 10 18 53 4 S Coastal LA 50 47 0.2 33 9 17 50 5 Southeast LA Co 70 61 0.4 35 13 23 71 6 W San Fernando Vly 86 77 0.4 32 10 15 122 7 E San Fernando Vly 93 80 0.4 35 15 22 133 8 W San Gabriel Vly 100 87 0.4 36 16 18 154 9 E San Gabriel Vly 127 98 0.4 37 17 19 182 10 Pomona Walnut Vly 97 90 0.5 42 16 21 161 11 S San Gabriel Vly 82 72 0.4 36 16 18 105 12 S Central LA Co 60 54 0.3 34 11 17 55 13 Santa Clarita Vly 119 92 0.3 32 15 11 166 15 San Gabriel Mts 100 86 0.4 37 14 20 151 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 72 71 0.3 30 12 15 101 Orange County: South Coast Air Basin 16 N Orange Co 71 63 0.2 43 13 10 77 17 Central Orange Co 57 52 0.3 30 12 8 56 18 N Coastal Orange Co 52 48 0.2 31 7 15 44 19 Saddleback Vly 64 58 0.2 43 5 11 61 20 Central Coastal 59 54 0.3 32 6 11 50 21 Capistrano Vly 59 54 0.4 35 7 10 50 Riverside County: South Coast Air Basin 22 Norco/Corona 85 77 0.4 56 14 14 122 23 Metro Riverside Co 119 92 0.4 63 17 17 166 24 Perris Vly 80 74 0.4 43 13 25 112 25 Lake Elsinore 73 65 0.4 33 11 10 84 26 Temecula Vly 58 55 0.3 42 9 11 51 27 Anza Vly 59 56 0.3 47 7 13 54 28 Hemet/San Jacinto 76 71 0.4 39 10 25 101 29 Banning 89 80 0.3 36 10 20 133 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 82 72 0.2 56 13 15 105 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 67 56 0.2 38 8 12 54 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 115 88 0.4 38 12 21 156 33 SW San Bernardino Vly 97 86 0.5 56 16 26 151 34 C San Bernardino Vly 143 110 0.5 44 13 32 205 35 E San Bernardino Vly 140 108 0.4 43 11 29 203 36 W San Bernardino Mtns 116 93 0.4 37 10 28 169 37 C San Bernardino Mtns 140 108 0.4 41 6 31 203 38 Big Bear Lake 85 71 0.4 39 7 28 101 San Bernardino County: Mojave Desert Air Basin 39 Phelan 80 72 0.3 31 7 27 105 40 Hesperia 76 74 0.4 25 8 30 112 41 Trona 59 56 0.2 24 6 29 54 42 Victorville 78 75 0.3 28 10 29 115 43 Yucca Vly 66 58 0.2 36 8 21 61 44 Barstow 71 67 0.3 29 8 37 90 45 Twentynine Palms 63 57 0.2 36 9 19 58 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SUN., AUG. 02, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... MODERATE in the following area(s): Central Mojave Desert AQI: 61 Ozone Coastal Area AQI: 56 PM2.5 Inland Orange County AQI: 61 Ozone Northern Mojave Desert AQI: 90 Ozone Temecula/Anza Area AQI: 54 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Antelope Valley AQI: 101 Ozone Banning Pass Area AQI: 133 Ozone Big Bear Lake AQI: 101 Ozone Coachella Valley/Low Desert AQI: 105 Ozone Hemet/Elsinore Area AQI: 112 Ozone Metropolitan Area AQI: 108 Ozone Victor Valley AQI: 115 Ozone UNHEALTHY in the following area(s): Riverside Valley AQI: 166 Ozone San Fernando/Santa Clarita Valleys AQI: 166 Ozone San Gabriel Mountains AQI: 151 Ozone San Gabriel Valley AQI: 182 Ozone VERY UNHEALTHY in the following area(s): San Bernardino Mountains AQI: 203 Ozone San Bernardino Valley AQI: 205 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ The high pressure ridge overhead will weaken and shift further east on Sunday, allowing for more marine air over SoCal. This will bring a little relief from the heat, with temperatures dropping 1-3 degrees closer to the coast although there will be little change in the Inland Empire and deserts. Southwest winds will increase, gusting up to 30 mph in the mountain passes. Inversion Base: 1497 FT | Breaking Temperature: 95 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 1872 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: MARGINAL-BURN Burning is prohibited in source/receptor area 30 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, AUGUST 02, 2026 IN THE SOUTH COAST AIR BASIN.