SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SAT., OCT. 10, 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 53 46 0.6 23 10 34 53 2 NW Coastal LA 55 45 0.4 23 8 18 44 3 SW Coastal LA 45 38 0.3 25 7 14 39 4 S Coastal LA 49 44 0.4 29 8 24 44 5 Southeast LA Co 48 43 0.5 29 10 29 53 6 W San Fernando Vly 55 48 0.3 24 8 23 44 7 E San Fernando Vly 58 51 0.5 24 8 27 47 8 W San Gabriel Vly 55 50 0.4 27 10 20 53 9 E San Gabriel Vly 57 56 0.7 30 9 34 54 10 Pomona Walnut Vly 59 51 0.6 36 11 43 55 11 S San Gabriel Vly 48 43 0.4 31 11 25 55 12 S Central LA Co 49 42 0.4 26 9 21 50 13 Santa Clarita Vly 61 49 0.4 25 7 19 45 15 San Gabriel Mts 55 50 0.6 32 8 27 46 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 55 52 0.4 28 12 10 56 Orange County: South Coast Air Basin 16 N Orange Co 51 46 0.3 38 10 22 53 17 Central Orange Co 49 45 0.7 30 9 22 50 18 N Coastal Orange Co 48 45 0.5 30 6 23 42 19 Saddleback Vly 52 48 0.5 38 5 28 44 20 Central Coastal 48 45 0.5 31 5 22 42 21 Capistrano Vly 47 44 0.5 33 6 24 41 Riverside County: South Coast Air Basin 22 Norco/Corona 60 52 0.6 46 11 32 55 23 Metro Riverside Co 71 57 0.8 50 14 38 60 24 Perris Vly 56 61 0.6 38 9 33 71 25 Lake Elsinore 53 49 0.4 33 9 24 50 26 Temecula Vly 50 46 0.4 35 5 23 43 27 Anza Vly 50 47 0.3 40 4 23 44 28 Hemet/San Jacinto 51 50 0.4 41 5 28 46 29 Banning 53 49 0.4 42 4 21 45 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 56 50 0.2 45 10 25 53 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 49 43 0.2 28 6 18 40 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 51 44 0.9 35 12 22 56 33 SW San Bernardino Vly 57 50 0.7 46 12 37 56 34 C San Bernardino Vly 65 54 0.5 38 11 40 55 35 E San Bernardino Vly 59 53 0.6 39 8 35 49 36 W San Bernardino Mtns 57 49 0.6 33 8 33 45 37 C San Bernardino Mtns 75 63 0.5 37 5 34 77 38 Big Bear Lake 50 46 0.4 39 4 32 43 San Bernardino County: Mojave Desert Air Basin 39 Phelan 53 48 0.5 27 5 34 44 40 Hesperia 64 55 0.5 21 7 36 51 41 Trona 47 43 0.3 30 6 15 40 42 Victorville 62 54 0.4 26 8 37 50 43 Yucca Vly 48 43 0.3 34 5 29 40 44 Barstow 57 51 0.4 31 7 45 47 45 Twentynine Palms 45 38 0.3 31 6 26 35 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SAT., OCT. 10, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Banning Pass Area AQI: 45 Ozone Big Bear Lake AQI: 43 Ozone Central Mojave Desert AQI: 40 Ozone Coastal Area AQI: 44 PM2.5 Inland Orange County AQI: 50 PM2.5 Northern Mojave Desert AQI: 47 Ozone San Fernando/Santa Clarita Valleys AQI: 47 Ozone San Gabriel Mountains AQI: 46 Ozone Temecula/Anza Area AQI: 44 Ozone MODERATE in the following area(s): Antelope Valley AQI: 56 PM2.5 Coachella Valley/Low Desert AQI: 53 PM2.5 Hemet/Elsinore Area AQI: 71 Ozone Metropolitan Area AQI: 53 PM2.5 Riverside Valley AQI: 60 PM2.5 San Bernardino Mountains AQI: 77 Ozone San Bernardino Valley AQI: 56 PM2.5 San Gabriel Valley AQI: 55 PM2.5 Victor Valley AQI: 51 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ High temperatures lowering to around average on Saturday. High temperatures will range from the 70s near the coast to the mid-80s in the valleys, with Temperatures around 10 degrees lower than Friday. Rain chances will increase late Saturday night into Sunday, with the potential for locally heavy rainfall. Inversion Base: 1344 FT | Breaking Temperature: 80 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 11591.5354 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: 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, OCTOBER 10, 2026 IN THE SOUTH COAST AIR BASIN.