SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: FRI., JUN. 05, 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 63 55 0.6 28 17 24 66 2 NW Coastal LA 48 43 0.2 27 15 12 62 3 SW Coastal LA 45 39 0.1 28 13 7 58 4 S Coastal LA 49 45 0.1 29 10 16 53 5 Southeast LA Co 61 52 0.4 30 13 20 58 6 W San Fernando Vly 69 62 0.3 27 14 10 74 7 E San Fernando Vly 66 59 0.4 28 15 18 64 8 W San Gabriel Vly 73 61 0.3 31 15 14 71 9 E San Gabriel Vly 84 73 0.4 36 14 20 108 10 Pomona Walnut Vly 78 68 0.3 41 15 20 93 11 S San Gabriel Vly 70 59 0.2 33 15 19 64 12 S Central LA Co 56 49 0.2 28 13 13 58 13 Santa Clarita Vly 87 77 0.3 27 15 19 122 15 San Gabriel Mts 77 69 0.3 38 14 19 97 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 74 72 0.3 26 14 20 105 Orange County: South Coast Air Basin 16 N Orange Co 63 55 0.2 39 13 10 58 17 Central Orange Co 55 48 0.3 29 12 7 56 18 N Coastal Orange Co 43 39 0.2 29 7 14 39 19 Saddleback Vly 54 46 0.2 39 8 14 44 20 Central Coastal 45 40 0.2 28 7 14 39 21 Capistrano Vly 46 41 0.3 30 7 15 39 Riverside County: South Coast Air Basin 22 Norco/Corona 77 67 0.4 51 15 15 90 23 Metro Riverside Co 86 75 0.6 55 17 14 115 24 Perris Vly 72 71 0.4 36 15 21 101 25 Lake Elsinore 70 63 0.3 27 13 16 77 26 Temecula Vly 56 55 0.3 33 10 14 53 27 Anza Vly 57 55 0.2 36 7 12 51 28 Hemet/San Jacinto 72 71 0.3 31 10 22 101 29 Banning 75 71 0.3 30 7 21 101 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 73 68 0.2 41 10 9 93 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 53 52 0.2 31 7 9 48 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 82 72 0.5 41 15 18 105 33 SW San Bernardino Vly 78 71 0.4 51 16 23 101 34 C San Bernardino Vly 100 90 0.3 34 14 28 161 35 E San Bernardino Vly 106 95 0.5 36 12 23 174 36 W San Bernardino Mtns 79 73 0.3 38 10 21 108 37 C San Bernardino Mtns 97 88 0.3 33 7 23 156 38 Big Bear Lake 75 71 0.3 31 7 22 101 San Bernardino County: Mojave Desert Air Basin 39 Phelan 74 71 0.3 31 7 15 101 40 Hesperia 73 68 0.3 28 8 19 93 41 Trona 64 60 0.2 37 7 21 67 42 Victorville 79 74 0.3 31 10 10 112 43 Yucca Vly 68 66 0.2 31 7 16 87 44 Barstow 76 73 0.2 36 10 31 108 45 Twentynine Palms 64 61 0.2 31 7 14 71 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON FRI., JUN. 05, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... MODERATE in the following area(s): Central Mojave Desert AQI: 87 Ozone Coachella Valley/Low Desert AQI: 93 Ozone Coastal Area AQI: 62 PM2.5 Inland Orange County AQI: 56 PM2.5 Metropolitan Area AQI: 66 PM2.5 San Gabriel Mountains AQI: 97 Ozone Temecula/Anza Area AQI: 53 PM2.5 UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Antelope Valley AQI: 105 Ozone Banning Pass Area AQI: 101 Ozone Big Bear Lake AQI: 101 Ozone Hemet/Elsinore Area AQI: 101 Ozone Northern Mojave Desert AQI: 108 Ozone Riverside Valley AQI: 115 Ozone San Fernando/Santa Clarita Valleys AQI: 122 Ozone San Gabriel Valley AQI: 108 Ozone Victor Valley AQI: 112 Ozone UNHEALTHY in the following area(s): San Bernardino Mountains AQI: 156 Ozone San Bernardino Valley AQI: 174 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Temperature will remain about the same tomorrow with onshore winds increasing slightly. Inversion Base: 1468 FT | Breaking Temperature: 84 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 2256 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 FRIDAY, JUNE 05, 2026 IN THE SOUTH COAST AIR BASIN.