SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: THU., OCT. 15, 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 50 44 0.9 34 10 50 53 2 NW Coastal LA 58 44 0.7 30 8 33 44 3 SW Coastal LA 53 43 0.7 32 11 47 55 4 S Coastal LA 51 44 1.2 31 11 55 55 5 Southeast LA Co 54 46 1.8 33 12 51 56 6 W San Fernando Vly 45 43 0.6 27 5 26 40 7 E San Fernando Vly 50 45 0.8 32 5 47 44 8 W San Gabriel Vly 51 46 0.6 31 5 48 45 9 E San Gabriel Vly 54 49 0.4 18 3 38 45 10 Pomona Walnut Vly 51 45 0.7 29 7 48 45 11 S San Gabriel Vly 54 46 1.0 33 9 51 50 12 S Central LA Co 53 46 1.8 32 12 46 56 13 Santa Clarita Vly 53 47 0.3 26 4 16 44 15 San Gabriel Mts 50 46 0.5 30 4 42 43 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 50 47 0.4 20 11 32 55 Orange County: South Coast Air Basin 16 N Orange Co 54 46 0.7 31 10 44 53 17 Central Orange Co 47 40 0.7 30 10 45 53 18 N Coastal Orange Co 52 46 1.0 29 11 49 55 19 Saddleback Vly 54 50 0.3 29 5 39 46 20 Central Coastal 50 47 0.5 24 9 35 50 21 Capistrano Vly 49 46 0.3 21 11 27 55 Riverside County: South Coast Air Basin 22 Norco/Corona 49 46 0.4 32 8 35 44 23 Metro Riverside Co 49 46 0.6 41 8 35 44 24 Perris Vly 48 45 0.6 35 6 30 42 25 Lake Elsinore 52 47 0.3 18 5 24 44 26 Temecula Vly 47 44 0.3 19 5 21 41 27 Anza Vly 50 46 0.2 20 4 18 43 28 Hemet/San Jacinto 48 45 0.5 30 3 27 42 29 Banning 52 46 0.5 27 2 27 43 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 51 47 0.2 36 9 15 50 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 44 42 0.2 22 6 13 39 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 46 44 0.5 32 6 27 41 33 SW San Bernardino Vly 48 45 0.6 34 8 45 44 34 C San Bernardino Vly 50 47 0.6 35 6 26 44 35 E San Bernardino Vly 49 46 0.6 37 4 32 43 36 W San Bernardino Mtns 46 44 0.5 29 5 26 41 37 C San Bernardino Mtns 46 44 0.6 33 5 31 41 38 Big Bear Lake 48 46 0.6 30 4 30 43 San Bernardino County: Mojave Desert Air Basin 39 Phelan 45 44 0.5 21 6 31 41 40 Hesperia 45 43 0.5 19 6 33 40 41 Trona 43 40 0.3 13 4 8 37 42 Victorville 43 42 0.5 20 7 32 39 43 Yucca Vly 50 47 0.3 26 6 25 44 44 Barstow 47 42 0.4 17 5 49 46 45 Twentynine Palms 49 44 0.3 25 6 22 41 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON THU., OCT. 15, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Banning Pass Area AQI: 43 Ozone Big Bear Lake AQI: 43 Ozone Central Mojave Desert AQI: 44 Ozone Coachella Valley/Low Desert AQI: 50 PM2.5 Hemet/Elsinore Area AQI: 44 Ozone Northern Mojave Desert AQI: 46 NO2 Riverside Valley AQI: 44 PM2.5 San Bernardino Mountains AQI: 41 Ozone San Bernardino Valley AQI: 44 PM2.5 San Fernando/Santa Clarita Valleys AQI: 44 NO2 San Gabriel Mountains AQI: 43 Ozone San Gabriel Valley AQI: 50 PM2.5 Temecula/Anza Area AQI: 43 Ozone Victor Valley AQI: 41 Ozone MODERATE in the following area(s): Antelope Valley AQI: 55 PM2.5 Coastal Area AQI: 55 PM2.5 Inland Orange County AQI: 55 PM2.5 Metropolitan Area AQI: 56 PM2.5 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Inversion Base: 920 FT | Breaking Temperature: 80 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 4183 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: BURN Area 53 - Mojave Desert Air Basin: MARGINAL-BURN Area 55 - Salton Sea Air Basin: MARGINAL-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 THURSDAY, OCTOBER 15, 2026 IN THE SOUTH COAST AIR BASIN.