SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: FRI., JUL. 03, 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 48 42 0.4 25 12 21 56 2 NW Coastal LA 40 37 0.3 25 8 17 44 3 SW Coastal LA 36 34 0.1 27 7 10 39 4 S Coastal LA 44 40 0.2 34 8 19 44 5 Southeast LA Co 47 41 0.4 35 10 22 53 6 W San Fernando Vly 55 50 0.3 24 8 14 46 7 E San Fernando Vly 51 45 0.4 26 10 18 53 8 W San Gabriel Vly 54 47 0.3 29 11 16 55 9 E San Gabriel Vly 69 59 0.4 33 11 21 64 10 Pomona Walnut Vly 66 56 0.4 43 12 25 56 11 S San Gabriel Vly 51 44 0.4 37 11 22 55 12 S Central LA Co 41 37 0.2 30 9 16 50 13 Santa Clarita Vly 67 58 0.3 24 9 17 61 15 San Gabriel Mts 60 54 0.3 40 9 22 50 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 61 56 0.3 23 10 18 54 Orange County: South Coast Air Basin 16 N Orange Co 55 49 0.2 42 10 13 53 17 Central Orange Co 45 41 0.3 37 9 11 50 18 N Coastal Orange Co 44 39 0.2 34 7 17 39 19 Saddleback Vly 50 46 0.2 41 9 15 50 20 Central Coastal 44 40 0.2 32 7 15 39 21 Capistrano Vly 42 39 0.3 29 7 16 39 Riverside County: South Coast Air Basin 22 Norco/Corona 62 58 0.3 49 12 17 61 23 Metro Riverside Co 71 65 0.4 51 12 18 84 24 Perris Vly 67 61 0.3 45 11 24 71 25 Lake Elsinore 56 53 0.3 27 10 16 53 26 Temecula Vly 49 45 0.3 31 8 15 44 27 Anza Vly 57 53 0.2 34 7 13 49 28 Hemet/San Jacinto 66 59 0.3 40 8 23 64 29 Banning 79 68 0.3 35 7 20 93 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 78 72 0.2 39 11 11 105 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 51 50 0.2 30 7 12 46 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 67 59 0.4 47 11 26 64 33 SW San Bernardino Vly 63 57 0.4 49 12 27 58 34 C San Bernardino Vly 73 64 0.4 50 11 31 80 35 E San Bernardino Vly 80 70 0.4 47 10 26 100 36 W San Bernardino Mtns 73 65 0.3 42 8 26 84 37 C San Bernardino Mtns 75 68 0.3 46 8 27 93 38 Big Bear Lake 72 67 0.3 41 7 25 90 San Bernardino County: Mojave Desert Air Basin 39 Phelan 75 68 0.3 29 7 18 93 40 Hesperia 66 63 0.3 24 8 23 77 41 Trona 57 55 0.2 22 7 25 51 42 Victorville 69 66 0.3 27 9 15 87 43 Yucca Vly 73 69 0.2 30 7 19 97 44 Barstow 70 65 0.2 28 7 39 84 45 Twentynine Palms 68 64 0.2 30 7 18 80 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON FRI., JUL. 03, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Coastal Area AQI: 44 PM2.5 Inland Orange County AQI: 50 PM2.5 San Gabriel Mountains AQI: 50 PM2.5 Temecula/Anza Area AQI: 49 Ozone MODERATE in the following area(s): Antelope Valley AQI: 54 Ozone Banning Pass Area AQI: 93 Ozone Big Bear Lake AQI: 90 Ozone Central Mojave Desert AQI: 97 Ozone Hemet/Elsinore Area AQI: 71 Ozone Metropolitan Area AQI: 56 PM2.5 Northern Mojave Desert AQI: 84 Ozone Riverside Valley AQI: 84 Ozone San Bernardino Mountains AQI: 93 Ozone San Bernardino Valley AQI: 100 Ozone San Fernando/Santa Clarita Valleys AQI: 61 Ozone San Gabriel Valley AQI: 64 Ozone Victor Valley AQI: 93 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Coachella Valley/Low Desert AQI: 105 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ A slow warming trend is forecast to continue Friday, with temperatures remaining below average for this time of year. Night and morning low clouds are forecast for the coasts and coastal valleys. Inversion Base: 2298 FT | Breaking Temperature: 83 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 2606 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: 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 FRIDAY, JULY 03, 2026 IN THE SOUTH COAST AIR BASIN.