SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SAT., AUG. 08, 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 66 57 0.5 26 14 30 60 2 NW Coastal LA 52 45 0.3 26 12 15 56 3 SW Coastal LA 40 37 0.1 32 11 13 55 4 S Coastal LA 52 45 0.3 44 11 16 55 5 Southeast LA Co 62 55 0.5 46 13 26 58 6 W San Fernando Vly 76 66 0.3 25 11 17 87 7 E San Fernando Vly 76 66 0.4 27 13 24 87 8 W San Gabriel Vly 83 72 0.4 33 13 21 105 9 E San Gabriel Vly 100 85 0.4 37 13 24 150 10 Pomona Walnut Vly 91 78 0.4 47 14 28 126 11 S San Gabriel Vly 80 70 0.4 46 14 26 100 12 S Central LA Co 50 43 0.4 35 12 15 56 13 Santa Clarita Vly 96 81 0.3 26 12 18 136 15 San Gabriel Mts 84 74 0.4 37 12 23 112 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 78 70 0.3 27 13 21 100 Orange County: South Coast Air Basin 16 N Orange Co 69 62 0.2 50 13 16 74 17 Central Orange Co 57 50 0.3 50 12 11 56 18 N Coastal Orange Co 55 46 0.3 45 12 15 56 19 Saddleback Vly 66 56 0.2 48 14 15 60 20 Central Coastal 60 51 0.3 43 12 14 56 21 Capistrano Vly 61 53 0.3 39 12 14 56 Riverside County: South Coast Air Basin 22 Norco/Corona 81 72 0.4 50 13 18 105 23 Metro Riverside Co 97 85 0.5 52 14 23 150 24 Perris Vly 83 75 0.4 47 14 24 115 25 Lake Elsinore 71 67 0.3 38 10 14 90 26 Temecula Vly 57 56 0.3 37 13 13 58 27 Anza Vly 64 59 0.3 35 10 11 64 28 Hemet/San Jacinto 82 73 0.4 43 14 23 108 29 Banning 100 85 0.4 40 13 20 150 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 77 70 0.4 44 11 9 100 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 58 55 0.2 31 7 10 51 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 88 77 0.4 38 14 22 122 33 SW San Bernardino Vly 87 76 0.4 50 14 28 118 34 C San Bernardino Vly 97 86 0.5 49 13 34 151 35 E San Bernardino Vly 98 86 0.4 48 13 25 151 36 W San Bernardino Mtns 88 80 0.4 37 11 28 133 37 C San Bernardino Mtns 97 87 0.4 45 7 29 154 38 Big Bear Lake 74 72 0.4 43 7 25 105 San Bernardino County: Mojave Desert Air Basin 39 Phelan 79 73 0.3 30 7 29 108 40 Hesperia 78 72 0.3 24 8 30 105 41 Trona 63 58 0.2 22 10 20 61 42 Victorville 76 70 0.3 27 9 30 100 43 Yucca Vly 74 69 0.3 36 9 18 97 44 Barstow 75 71 0.3 29 11 39 101 45 Twentynine Palms 71 67 0.3 35 10 17 90 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SAT., AUG. 08, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... MODERATE in the following area(s): Antelope Valley AQI: 100 Ozone Central Mojave Desert AQI: 97 Ozone Coachella Valley/Low Desert AQI: 100 Ozone Coastal Area AQI: 56 PM2.5 Inland Orange County AQI: 60 PM2.5 Metropolitan Area AQI: 74 Ozone Temecula/Anza Area AQI: 64 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Banning Pass Area AQI: 150 Ozone Big Bear Lake AQI: 105 Ozone Hemet/Elsinore Area AQI: 115 Ozone Northern Mojave Desert AQI: 101 Ozone Riverside Valley AQI: 150 Ozone San Fernando/Santa Clarita Valleys AQI: 136 Ozone San Gabriel Mountains AQI: 112 Ozone San Gabriel Valley AQI: 150 Ozone Victor Valley AQI: 108 Ozone UNHEALTHY in the following area(s): San Bernardino Mountains AQI: 154 Ozone San Bernardino Valley AQI: 151 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Saturday is expected to be the hottest day of the week, with Heat Advisories and Extreme Heat Warnings in effect everywhere except Orange County and coastal LA County. Monsoonal moisture will move in from the southeast and could cause thunderstorms and showers over the San Bernardino mountain areas. Onshore flow and morning fog will likely persist along the coast and inland. Inversion Base: 1590 FT | Breaking Temperature: 90 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 1969 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 SATURDAY, AUGUST 08, 2026 IN THE SOUTH COAST AIR BASIN.