SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: WED., OCT. 28, 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 0.9 38 10 24 53 2 NW Coastal LA 53 48 0.4 33 8 28 44 3 SW Coastal LA 49 44 0.3 35 11 25 55 4 S Coastal LA 51 46 0.4 32 15 27 62 5 Southeast LA Co 54 47 0.8 35 11 32 55 6 W San Fernando Vly 52 47 0.5 29 9 18 50 7 E San Fernando Vly 57 50 0.6 36 10 24 53 8 W San Gabriel Vly 57 50 0.4 36 10 24 53 9 E San Gabriel Vly 54 49 0.6 33 9 27 50 10 Pomona Walnut Vly 56 47 0.6 38 12 32 56 11 S San Gabriel Vly 56 47 0.5 35 10 32 53 12 S Central LA Co 54 47 0.8 35 13 28 58 13 Santa Clarita Vly 58 53 0.4 27 12 21 56 15 San Gabriel Mts 56 50 0.5 35 11 32 55 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 56 49 0.4 16 10 31 53 Orange County: South Coast Air Basin 16 N Orange Co 53 46 0.2 36 10 27 53 17 Central Orange Co 49 43 0.6 23 9 22 50 18 N Coastal Orange Co 47 44 0.4 26 7 25 41 19 Saddleback Vly 49 46 0.3 36 5 22 43 20 Central Coastal 47 44 0.3 23 5 20 41 21 Capistrano Vly 46 44 0.4 25 4 17 41 Riverside County: South Coast Air Basin 22 Norco/Corona 56 48 0.5 49 14 23 60 23 Metro Riverside Co 55 48 0.8 54 18 22 68 24 Perris Vly 51 47 0.5 39 10 31 53 25 Lake Elsinore 53 48 0.4 25 9 16 50 26 Temecula Vly 49 46 0.3 29 4 17 43 27 Anza Vly 48 45 0.3 33 4 19 42 28 Hemet/San Jacinto 53 49 0.4 36 7 31 45 29 Banning 55 51 0.4 33 6 24 47 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 52 0.2 39 6 22 48 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 45 42 0.2 28 4 17 39 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 50 45 0.8 38 12 36 56 33 SW San Bernardino Vly 53 45 0.6 49 15 35 62 34 C San Bernardino Vly 51 44 0.5 42 13 40 58 35 E San Bernardino Vly 53 47 0.6 40 9 36 50 36 W San Bernardino Mtns 49 45 0.5 35 9 37 50 37 C San Bernardino Mtns 56 50 0.5 39 6 39 46 38 Big Bear Lake 51 48 0.4 36 6 35 44 San Bernardino County: Mojave Desert Air Basin 39 Phelan 54 50 0.4 24 5 36 46 40 Hesperia 48 45 0.4 20 7 38 42 41 Trona 50 47 0.3 18 6 12 44 42 Victorville 49 47 0.4 22 8 37 44 43 Yucca Vly 53 50 0.3 31 4 25 46 44 Barstow 55 45 0.3 26 8 38 44 45 Twentynine Palms 50 47 0.3 30 4 23 44 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON WED., OCT. 28, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Banning Pass Area AQI: 47 Ozone Big Bear Lake AQI: 44 Ozone Central Mojave Desert AQI: 46 Ozone Coachella Valley/Low Desert AQI: 48 Ozone Inland Orange County AQI: 50 PM2.5 Northern Mojave Desert AQI: 44 PM2.5 San Bernardino Mountains AQI: 50 PM2.5 Temecula/Anza Area AQI: 43 Ozone Victor Valley AQI: 46 Ozone MODERATE in the following area(s): Antelope Valley AQI: 53 PM2.5 Coastal Area AQI: 62 PM2.5 Hemet/Elsinore Area AQI: 53 PM2.5 Metropolitan Area AQI: 58 PM2.5 Riverside Valley AQI: 68 PM2.5 San Bernardino Valley AQI: 62 PM2.5 San Fernando/Santa Clarita Valleys AQI: 56 PM2.5 San Gabriel Mountains AQI: 55 PM2.5 San Gabriel Valley AQI: 56 PM2.5 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Temperatures will cool 1-4 degrees below Tuesday. Expect some morning clouds that burn off before midday. Winds will be light to moderate onshore. Inversion Base: 3026 FT | Breaking Temperature: 76 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 3586 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 WEDNESDAY, OCTOBER 28, 2026 IN THE SOUTH COAST AIR BASIN.