SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: FRI., OCT. 16, 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 49 0.7 37 8 49 46 2 NW Coastal LA 58 48 0.6 35 9 29 50 3 SW Coastal LA 53 43 0.8 44 12 47 56 4 S Coastal LA 55 47 1.6 69 9 59 58 5 Southeast LA Co 55 48 1.8 71 9 54 59 6 W San Fernando Vly 51 47 0.8 29 5 21 44 7 E San Fernando Vly 61 55 0.7 36 5 42 51 8 W San Gabriel Vly 53 50 0.6 40 5 41 46 9 E San Gabriel Vly 58 54 0.4 21 2 23 50 10 Pomona Walnut Vly 53 50 0.7 73 5 42 60 11 S San Gabriel Vly 55 49 0.9 65 6 48 56 12 S Central LA Co 56 49 1.8 53 11 49 55 13 Santa Clarita Vly 54 52 0.2 30 5 14 48 15 San Gabriel Mts 52 50 0.4 34 4 35 46 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 55 52 0.3 26 10 26 53 Orange County: South Coast Air Basin 16 N Orange Co 54 48 0.6 83 7 33 65 17 Central Orange Co 46 41 0.5 81 7 41 64 18 N Coastal Orange Co 53 48 1.3 66 7 51 56 19 Saddleback Vly 52 50 0.2 83 4 34 65 20 Central Coastal 52 48 0.5 54 5 31 50 21 Capistrano Vly 49 47 0.3 36 4 21 44 Riverside County: South Coast Air Basin 22 Norco/Corona 52 48 0.4 104 6 26 75 23 Metro Riverside Co 54 49 0.7 120 7 33 83 24 Perris Vly 44 43 0.5 44 5 27 41 25 Lake Elsinore 48 46 0.2 24 4 14 43 26 Temecula Vly 46 44 0.2 23 3 13 41 27 Anza Vly 48 45 0.2 23 3 14 42 28 Hemet/San Jacinto 46 44 0.3 29 4 20 41 29 Banning 49 45 0.3 25 4 11 42 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 54 47 0.1 36 3 16 44 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 52 46 0.1 22 3 12 43 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 33 32 0.5 32 6 32 33 33 SW San Bernardino Vly 49 46 0.6 104 7 38 75 34 C San Bernardino Vly 54 50 0.4 36 5 25 46 35 E San Bernardino Vly 48 46 0.5 34 4 30 43 36 W San Bernardino Mtns 43 42 0.4 31 5 28 39 37 C San Bernardino Mtns 50 47 0.4 33 3 31 44 38 Big Bear Lake 48 47 0.4 29 4 28 44 San Bernardino County: Mojave Desert Air Basin 39 Phelan 49 48 0.3 23 5 36 44 40 Hesperia 47 46 0.3 19 5 37 43 41 Trona 47 43 0.2 11 4 7 40 42 Victorville 47 45 0.3 21 6 39 42 43 Yucca Vly 50 48 0.2 24 3 24 44 44 Barstow 53 49 0.3 15 5 48 45 45 Twentynine Palms 50 46 0.2 24 3 21 43 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON FRI., OCT. 16, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Banning Pass Area AQI: 42 Ozone Big Bear Lake AQI: 44 Ozone Central Mojave Desert AQI: 44 Ozone Coachella Valley/Low Desert AQI: 44 Ozone Hemet/Elsinore Area AQI: 43 Ozone Northern Mojave Desert AQI: 45 Ozone San Bernardino Mountains AQI: 44 Ozone San Gabriel Mountains AQI: 46 Ozone Temecula/Anza Area AQI: 42 Ozone Victor Valley AQI: 44 Ozone MODERATE in the following area(s): Antelope Valley AQI: 53 PM2.5 Coastal Area AQI: 58 PM10 Inland Orange County AQI: 65 PM10 Metropolitan Area AQI: 65 PM10 Riverside Valley AQI: 83 PM10 San Bernardino Valley AQI: 75 PM10 San Fernando/Santa Clarita Valleys AQI: 51 Ozone San Gabriel Valley AQI: 60 PM10 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Sunny skies and warm temperatures are expected today. Winds will be strong, with gusts reaching 40 to 50 mph. Inversion Base: 486 FT | Breaking Temperature: 79 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 4156 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 FRIDAY, OCTOBER 16, 2026 IN THE SOUTH COAST AIR BASIN.