SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SUN., OCT. 25, 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 47 1.0 29 10 30 53 2 NW Coastal LA 55 50 0.5 27 11 21 55 3 SW Coastal LA 48 44 0.6 28 10 33 53 4 S Coastal LA 51 44 0.7 33 12 22 56 5 Southeast LA Co 54 46 0.9 34 10 29 53 6 W San Fernando Vly 59 54 0.6 24 9 17 50 7 E San Fernando Vly 61 53 0.7 29 9 24 50 8 W San Gabriel Vly 61 52 0.5 30 8 20 48 9 E San Gabriel Vly 63 54 0.6 27 6 23 50 10 Pomona Walnut Vly 62 49 0.7 35 10 32 53 11 S San Gabriel Vly 58 48 0.7 33 10 25 53 12 S Central LA Co 52 45 0.9 31 10 29 53 13 Santa Clarita Vly 59 52 0.3 25 7 13 48 15 San Gabriel Mts 59 52 0.6 28 7 23 48 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 56 50 0.5 23 8 25 46 Orange County: South Coast Air Basin 16 N Orange Co 60 50 0.5 36 10 22 53 17 Central Orange Co 50 43 0.7 35 10 21 53 18 N Coastal Orange Co 48 43 0.6 32 6 21 40 19 Saddleback Vly 53 49 0.3 36 5 21 45 20 Central Coastal 50 46 0.4 29 4 16 43 21 Capistrano Vly 51 48 0.4 25 4 13 44 Riverside County: South Coast Air Basin 22 Norco/Corona 58 53 0.6 41 11 24 55 23 Metro Riverside Co 60 52 0.7 45 13 30 58 24 Perris Vly 55 51 0.7 32 11 28 55 25 Lake Elsinore 56 53 0.4 24 7 11 49 26 Temecula Vly 46 44 0.4 23 6 12 41 27 Anza Vly 47 45 0.3 23 4 13 42 28 Hemet/San Jacinto 49 47 0.6 26 7 26 44 29 Banning 52 50 0.6 23 4 21 46 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 48 0.2 39 9 15 50 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 43 40 0.2 24 5 13 37 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 72 59 0.6 25 10 24 64 33 SW San Bernardino Vly 61 51 0.7 41 12 29 56 34 C San Bernardino Vly 60 51 0.7 30 9 30 50 35 E San Bernardino Vly 55 50 0.7 34 7 29 46 36 W San Bernardino Mtns 64 54 0.6 26 6 30 50 37 C San Bernardino Mtns 52 48 0.7 28 5 33 44 38 Big Bear Lake 50 48 0.7 26 6 29 44 San Bernardino County: Mojave Desert Air Basin 39 Phelan 51 49 0.6 23 4 34 45 40 Hesperia 49 44 0.6 19 6 36 41 41 Trona 42 39 0.3 14 4 9 36 42 Victorville 53 48 0.6 21 8 37 44 43 Yucca Vly 46 42 0.4 27 5 22 39 44 Barstow 48 43 0.4 22 5 42 40 45 Twentynine Palms 43 40 0.3 27 5 20 37 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SUN., OCT. 25, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Antelope Valley AQI: 46 Ozone Banning Pass Area AQI: 46 Ozone Big Bear Lake AQI: 44 Ozone Central Mojave Desert AQI: 39 Ozone Coachella Valley/Low Desert AQI: 50 PM2.5 Northern Mojave Desert AQI: 40 Ozone San Bernardino Mountains AQI: 50 Ozone San Fernando/Santa Clarita Valleys AQI: 50 PM2.5 San Gabriel Mountains AQI: 48 Ozone Temecula/Anza Area AQI: 42 Ozone Victor Valley AQI: 45 Ozone MODERATE in the following area(s): Coastal Area AQI: 56 PM2.5 Hemet/Elsinore Area AQI: 55 PM2.5 Inland Orange County AQI: 53 PM2.5 Metropolitan Area AQI: 53 PM2.5 Riverside Valley AQI: 58 PM2.5 San Bernardino Valley AQI: 64 Ozone San Gabriel Valley AQI: 53 PM2.5 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Clearer skies with warmer weather will occur this weekend with locally gusty Santa Ana winds. High temperatures creep up a bit more on Sunday. Inversion Base: 486 FT | Breaking Temperature: 65 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 3653 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 SUNDAY, OCTOBER 25, 2026 IN THE SOUTH COAST AIR BASIN.