SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: THU., JUL. 09, 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 69 61 0.5 34 15 26 71 2 NW Coastal LA 53 49 0.4 33 8 11 45 3 SW Coastal LA 41 39 0.2 34 9 18 50 4 S Coastal LA 53 47 0.2 38 8 19 44 5 Southeast LA Co 67 57 0.4 40 13 24 58 6 W San Fernando Vly 80 72 0.4 32 12 16 105 7 E San Fernando Vly 76 69 0.4 34 14 22 97 8 W San Gabriel Vly 80 72 0.3 38 15 20 105 9 E San Gabriel Vly 100 85 0.4 45 13 25 150 10 Pomona Walnut Vly 95 80 0.4 46 15 29 133 11 S San Gabriel Vly 80 67 0.3 42 15 23 90 12 S Central LA Co 59 53 0.2 36 12 18 56 13 Santa Clarita Vly 90 84 0.3 31 11 23 147 15 San Gabriel Mts 84 78 0.4 45 12 26 126 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 81 77 0.3 29 12 17 122 Orange County: South Coast Air Basin 16 N Orange Co 71 59 0.1 45 14 12 64 17 Central Orange Co 58 49 0.2 39 13 7 58 18 N Coastal Orange Co 42 36 0.2 39 7 16 39 19 Saddleback Vly 50 43 0.1 45 10 16 53 20 Central Coastal 43 37 0.2 40 7 15 39 21 Capistrano Vly 48 42 0.3 42 8 17 44 Riverside County: South Coast Air Basin 22 Norco/Corona 86 72 0.3 50 14 20 105 23 Metro Riverside Co 101 86 0.4 53 15 24 151 24 Perris Vly 93 80 0.3 47 16 28 133 25 Lake Elsinore 77 69 0.3 43 17 18 97 26 Temecula Vly 60 57 0.3 43 15 16 62 27 Anza Vly 70 63 0.2 46 7 14 77 28 Hemet/San Jacinto 76 71 0.3 43 12 28 101 29 Banning 96 83 0.3 38 10 24 143 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 83 77 0.2 50 7 13 122 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 54 48 0.2 37 7 11 44 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 95 84 0.5 45 15 28 147 33 SW San Bernardino Vly 91 76 0.4 49 16 32 118 34 C San Bernardino Vly 105 92 0.4 38 12 39 166 35 E San Bernardino Vly 116 96 0.4 47 11 30 177 36 W San Bernardino Mtns 98 90 0.4 44 12 31 161 37 C San Bernardino Mtns 105 95 0.3 39 8 31 174 38 Big Bear Lake 84 73 0.3 38 7 29 108 San Bernardino County: Mojave Desert Air Basin 39 Phelan 90 80 0.3 38 7 23 133 40 Hesperia 80 77 0.3 37 10 28 122 41 Trona 60 58 0.2 32 7 27 61 42 Victorville 92 84 0.3 37 10 21 147 43 Yucca Vly 89 78 0.2 35 7 18 126 44 Barstow 83 69 0.3 32 8 32 97 45 Twentynine Palms 79 71 0.2 35 7 16 101 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON THU., JUL. 09, 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): Inland Orange County AQI: 58 PM2.5 Metropolitan Area AQI: 71 Ozone Northern Mojave Desert AQI: 97 Ozone Temecula/Anza Area AQI: 77 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Antelope Valley AQI: 122 Ozone Banning Pass Area AQI: 143 Ozone Big Bear Lake AQI: 108 Ozone Central Mojave Desert AQI: 126 Ozone Coachella Valley/Low Desert AQI: 122 Ozone Hemet/Elsinore Area AQI: 133 Ozone San Fernando/Santa Clarita Valleys AQI: 147 Ozone San Gabriel Mountains AQI: 126 Ozone San Gabriel Valley AQI: 150 Ozone Victor Valley AQI: 147 Ozone UNHEALTHY in the following area(s): Riverside Valley AQI: 151 Ozone San Bernardino Mountains AQI: 174 Ozone San Bernardino Valley AQI: 177 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Strong high pressure will continue the warming through Thursday. High temperatures will warm and few to around 5 degrees for inland areas. Night and morning coastal low clouds are expected into far western valleys. Inversion Base: 1500 FT | Breaking Temperature: 91 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 1901 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 THURSDAY, JULY 09, 2026 IN THE SOUTH COAST AIR BASIN.