SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SAT., AUG. 29, 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 71 62 0.8 30 14 32 74 2 NW Coastal LA 58 49 0.3 29 13 17 58 3 SW Coastal LA 47 38 0.3 29 12 10 56 4 S Coastal LA 53 48 0.3 28 11 24 55 5 Southeast LA Co 62 55 0.5 30 12 26 56 6 W San Fernando Vly 70 59 0.3 28 10 17 64 7 E San Fernando Vly 69 59 0.6 31 12 24 64 8 W San Gabriel Vly 76 66 0.3 33 13 18 87 9 E San Gabriel Vly 81 71 0.6 37 12 30 101 10 Pomona Walnut Vly 71 66 0.4 38 13 30 87 11 S San Gabriel Vly 69 61 0.3 33 14 22 71 12 S Central LA Co 57 50 0.2 29 12 17 56 13 Santa Clarita Vly 73 63 0.3 29 11 20 77 15 San Gabriel Mts 69 60 0.4 37 11 23 67 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 59 55 0.3 30 12 14 56 Orange County: South Coast Air Basin 16 N Orange Co 65 57 0.1 36 12 16 58 17 Central Orange Co 54 47 0.4 24 11 17 55 18 N Coastal Orange Co 54 49 0.3 27 9 22 50 19 Saddleback Vly 51 48 0.3 36 7 19 44 20 Central Coastal 54 52 0.3 29 9 18 50 21 Capistrano Vly 54 51 0.3 32 7 17 47 Riverside County: South Coast Air Basin 22 Norco/Corona 61 56 0.4 46 11 22 55 23 Metro Riverside Co 72 66 0.4 50 13 26 87 24 Perris Vly 60 57 0.4 43 11 27 58 25 Lake Elsinore 56 50 0.3 32 9 17 50 26 Temecula Vly 50 44 0.3 36 8 16 44 27 Anza Vly 51 47 0.2 40 6 14 44 28 Hemet/San Jacinto 54 52 0.4 38 8 26 48 29 Banning 61 54 0.4 34 6 20 50 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 61 54 0.2 46 8 13 50 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 48 45 0.2 35 7 12 42 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 72 66 0.5 37 13 23 87 33 SW San Bernardino Vly 66 62 0.4 46 13 28 74 34 C San Bernardino Vly 76 70 0.4 43 11 32 100 35 E San Bernardino Vly 73 66 0.4 44 9 29 87 36 W San Bernardino Mtns 68 63 0.4 36 10 26 77 37 C San Bernardino Mtns 74 68 0.4 41 6 29 93 38 Big Bear Lake 61 57 0.4 38 6 27 58 San Bernardino County: Mojave Desert Air Basin 39 Phelan 61 58 0.4 31 7 20 61 40 Hesperia 58 55 0.4 25 8 25 51 41 Trona 53 48 0.2 23 7 49 46 42 Victorville 63 58 0.4 28 10 18 61 43 Yucca Vly 57 54 0.3 35 6 20 50 44 Barstow 58 55 0.3 28 10 39 53 45 Twentynine Palms 55 48 0.2 35 7 19 44 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SAT., AUG. 29, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Banning Pass Area AQI: 50 Ozone Central Mojave Desert AQI: 50 Ozone Coachella Valley/Low Desert AQI: 50 Ozone Temecula/Anza Area AQI: 44 PM2.5 MODERATE in the following area(s): Antelope Valley AQI: 56 PM2.5 Big Bear Lake AQI: 58 Ozone Coastal Area AQI: 58 PM2.5 Hemet/Elsinore Area AQI: 58 Ozone Inland Orange County AQI: 55 PM2.5 Metropolitan Area AQI: 74 Ozone Northern Mojave Desert AQI: 53 PM2.5 Riverside Valley AQI: 87 Ozone San Bernardino Mountains AQI: 93 Ozone San Bernardino Valley AQI: 100 Ozone San Fernando/Santa Clarita Valleys AQI: 77 Ozone San Gabriel Mountains AQI: 67 Ozone Victor Valley AQI: 61 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): San Gabriel Valley AQI: 101 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Mostly sunny skies with cooler temperatures are expected. Inversion Base: 486 FT | Breaking Temperature: 85 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 1556 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: MARGINAL-BURN Burning is prohibited in the following source/receptor areas: 9 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 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 SATURDAY, AUGUST 29, 2026 IN THE SOUTH COAST AIR BASIN.