SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: TUE., JUN. 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 64 52 0.4 32 12 24 56 2 NW Coastal LA 50 44 0.3 31 11 13 55 3 SW Coastal LA 43 37 0.2 31 9 15 50 4 S Coastal LA 50 45 0.2 30 8 22 44 5 Southeast LA Co 55 48 0.3 31 11 20 55 6 W San Fernando Vly 64 60 0.3 29 10 10 67 7 E San Fernando Vly 66 59 0.3 32 12 18 64 8 W San Gabriel Vly 73 62 0.3 32 13 13 74 9 E San Gabriel Vly 81 71 0.3 33 12 18 101 10 Pomona Walnut Vly 70 62 0.3 39 12 22 74 11 S San Gabriel Vly 64 54 0.3 32 11 19 55 12 S Central LA Co 51 45 0.2 31 11 14 55 13 Santa Clarita Vly 78 69 0.3 29 9 19 97 15 San Gabriel Mts 75 66 0.3 37 10 18 87 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 62 56 0.2 26 9 10 54 Orange County: South Coast Air Basin 16 N Orange Co 55 51 0.2 36 11 10 55 17 Central Orange Co 47 43 0.3 25 8 7 44 18 N Coastal Orange Co 42 39 0.2 27 5 18 36 19 Saddleback Vly 46 41 0.2 36 7 11 39 20 Central Coastal 43 39 0.2 28 5 11 36 21 Capistrano Vly 48 43 0.2 35 7 10 40 Riverside County: South Coast Air Basin 22 Norco/Corona 68 63 0.3 47 11 14 77 23 Metro Riverside Co 76 70 0.4 51 12 20 100 24 Perris Vly 78 70 0.3 38 11 21 100 25 Lake Elsinore 64 58 0.3 28 9 9 61 26 Temecula Vly 47 46 0.2 47 10 9 53 27 Anza Vly 55 53 0.2 46 10 10 53 28 Hemet/San Jacinto 66 62 0.3 38 10 21 74 29 Banning 82 75 0.3 30 9 19 115 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 71 67 0.2 70 17 11 90 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 52 50 0.2 38 12 9 56 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 79 71 0.4 40 14 16 101 33 SW San Bernardino Vly 69 64 0.3 47 13 20 80 34 C San Bernardino Vly 83 75 0.3 36 13 25 115 35 E San Bernardino Vly 85 78 0.3 40 11 22 126 36 W San Bernardino Mtns 86 78 0.3 38 12 20 126 37 C San Bernardino Mtns 100 88 0.3 36 8 23 156 38 Big Bear Lake 73 68 0.3 33 9 22 93 San Bernardino County: Mojave Desert Air Basin 39 Phelan 73 66 0.3 33 7 18 87 40 Hesperia 71 65 0.3 34 9 21 84 41 Trona 55 51 0.2 32 6 22 47 42 Victorville 69 62 0.3 33 9 18 74 43 Yucca Vly 71 65 0.2 28 13 13 84 44 Barstow 64 49 0.2 27 6 19 45 45 Twentynine Palms 66 60 0.2 31 14 12 67 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON TUE., JUN. 09, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Inland Orange County AQI: 44 PM2.5 Northern Mojave Desert AQI: 47 Ozone MODERATE in the following area(s): Antelope Valley AQI: 54 Ozone Big Bear Lake AQI: 93 Ozone Central Mojave Desert AQI: 84 Ozone Coachella Valley/Low Desert AQI: 90 Ozone Coastal Area AQI: 55 PM2.5 Hemet/Elsinore Area AQI: 100 Ozone Metropolitan Area AQI: 56 PM2.5 Riverside Valley AQI: 100 Ozone San Fernando/Santa Clarita Valleys AQI: 97 Ozone San Gabriel Mountains AQI: 87 Ozone Temecula/Anza Area AQI: 53 PM2.5 Victor Valley AQI: 87 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Banning Pass Area AQI: 115 Ozone San Bernardino Valley AQI: 126 Ozone San Gabriel Valley AQI: 101 Ozone UNHEALTHY in the following area(s): San Bernardino Mountains AQI: 156 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ The low pressure system overhead slowly moves eastward and allows for a ridge to gradually start building over SoCal on Tuesday. Morning clouds will be shallower, won't spread as far east and will give way to sunshine sooner. Temperatures will warm 2-5 degrees over Monday, to around normal for this time of year. Winds will be light to moderate onshore (mostly from the west). Inversion Base: 486 FT | Breaking Temperature: 69 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 2650 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 TUESDAY, JUNE 09, 2026 IN THE SOUTH COAST AIR BASIN.