SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: MON., OCT. 26, 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 55 48 1.0 35 12 31 56 2 NW Coastal LA 52 46 0.5 32 12 26 56 3 SW Coastal LA 47 42 0.5 33 10 29 53 4 S Coastal LA 50 45 0.6 37 12 31 56 5 Southeast LA Co 53 46 0.8 38 12 29 56 6 W San Fernando Vly 57 50 0.8 28 8 22 46 7 E San Fernando Vly 58 51 0.8 34 10 29 53 8 W San Gabriel Vly 58 50 0.5 35 11 29 55 9 E San Gabriel Vly 63 54 0.6 33 8 27 50 10 Pomona Walnut Vly 62 50 0.7 39 11 31 55 11 S San Gabriel Vly 56 47 0.6 37 12 27 56 12 S Central LA Co 52 47 0.6 35 11 24 55 13 Santa Clarita Vly 62 54 0.4 28 8 21 50 15 San Gabriel Mts 59 52 0.5 33 9 28 50 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 58 53 0.5 22 10 26 53 Orange County: South Coast Air Basin 16 N Orange Co 58 49 0.4 41 10 19 53 17 Central Orange Co 48 43 0.6 39 9 21 50 18 N Coastal Orange Co 49 44 0.6 36 6 28 41 19 Saddleback Vly 53 48 0.4 41 5 25 44 20 Central Coastal 50 45 0.4 34 5 23 42 21 Capistrano Vly 50 45 0.4 32 5 22 42 Riverside County: South Coast Air Basin 22 Norco/Corona 62 53 0.6 46 10 28 53 23 Metro Riverside Co 65 55 0.8 50 14 34 60 24 Perris Vly 62 57 0.6 38 10 32 58 25 Lake Elsinore 62 57 0.4 32 8 22 58 26 Temecula Vly 54 49 0.3 31 7 21 45 27 Anza Vly 55 52 0.3 31 5 20 48 28 Hemet/San Jacinto 57 53 0.5 31 7 31 49 29 Banning 56 53 0.5 27 6 30 49 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 57 53 0.2 39 8 20 49 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 47 44 0.2 27 5 19 41 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 63 52 0.7 25 12 31 56 33 SW San Bernardino Vly 62 51 0.6 46 13 35 58 34 C San Bernardino Vly 61 52 0.6 32 11 39 55 35 E San Bernardino Vly 60 54 0.7 37 8 33 50 36 W San Bernardino Mtns 63 54 0.6 27 9 34 50 37 C San Bernardino Mtns 56 53 0.6 31 6 34 49 38 Big Bear Lake 56 53 0.6 29 5 32 49 San Bernardino County: Mojave Desert Air Basin 39 Phelan 59 55 0.5 25 7 31 51 40 Hesperia 55 51 0.6 22 8 34 47 41 Trona 50 46 0.3 16 5 16 43 42 Victorville 53 50 0.5 24 10 31 53 43 Yucca Vly 58 55 0.3 30 6 27 51 44 Barstow 60 52 0.4 28 10 44 53 45 Twentynine Palms 49 46 0.3 30 5 25 43 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON MON., OCT. 26, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Banning Pass Area AQI: 49 Ozone Big Bear Lake AQI: 49 Ozone Coachella Valley/Low Desert AQI: 49 Ozone Inland Orange County AQI: 50 PM2.5 San Bernardino Mountains AQI: 50 PM2.5 San Gabriel Mountains AQI: 50 PM2.5 Temecula/Anza Area AQI: 48 Ozone MODERATE in the following area(s): Antelope Valley AQI: 53 PM2.5 Central Mojave Desert AQI: 51 Ozone Coastal Area AQI: 56 PM2.5 Hemet/Elsinore Area AQI: 58 Ozone Metropolitan Area AQI: 56 PM2.5 Northern Mojave Desert AQI: 53 PM2.5 Riverside Valley AQI: 60 PM2.5 San Bernardino Valley AQI: 58 PM2.5 San Fernando/Santa Clarita Valleys AQI: 53 PM2.5 San Gabriel Valley AQI: 56 PM2.5 Victor Valley AQI: 53 PM2.5 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Calm and warmer weather is expected on Monday. High temperatures will be slightly warmer than Sunday. Inversion Base: 486 FT | Breaking Temperature: 69 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 2097 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 MONDAY, OCTOBER 26, 2026 IN THE SOUTH COAST AIR BASIN.