SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SUN., APR. 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 56 52 0.5 13 4 21 48 2 NW Coastal LA 50 48 0.3 13 4 15 44 3 SW Coastal LA 45 43 0.2 13 5 6 40 4 S Coastal LA 55 53 0.4 13 6 15 49 5 Southeast LA Co 55 51 0.4 13 5 24 47 6 W San Fernando Vly 53 50 0.2 12 4 14 46 7 E San Fernando Vly 57 53 0.4 13 3 17 49 8 W San Gabriel Vly 57 52 0.3 13 3 9 48 9 E San Gabriel Vly 55 50 0.3 13 1 11 46 10 Pomona Walnut Vly 52 47 0.4 23 3 19 44 11 S San Gabriel Vly 56 51 0.3 14 4 18 47 12 S Central LA Co 54 50 0.3 13 7 24 46 13 Santa Clarita Vly 53 51 0.3 11 3 10 47 15 San Gabriel Mts 54 51 0.3 22 3 12 47 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 56 54 0.2 18 7 4 50 Orange County: South Coast Air Basin 16 N Orange Co 57 52 0.3 19 5 15 48 17 Central Orange Co 54 49 0.3 13 5 13 45 18 N Coastal Orange Co 54 51 0.3 12 5 14 47 19 Saddleback Vly 52 49 0.1 19 4 13 45 20 Central Coastal 51 48 0.2 11 4 11 44 21 Capistrano Vly 48 47 0.2 22 3 9 44 Riverside County: South Coast Air Basin 22 Norco/Corona 55 51 0.3 28 6 15 47 23 Metro Riverside Co 58 54 0.4 45 7 14 50 24 Perris Vly 51 48 0.2 26 4 11 44 25 Lake Elsinore 52 50 0.2 9 3 8 46 26 Temecula Vly 48 46 0.2 37 4 8 43 27 Anza Vly 51 50 0.2 47 5 7 46 28 Hemet/San Jacinto 52 49 0.2 35 4 8 45 29 Banning 55 51 0.2 31 3 6 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 59 58 0.2 67 12 7 61 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 57 55 0.2 75 8 5 61 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 47 43 0.3 28 5 13 40 33 SW San Bernardino Vly 53 49 0.3 32 6 17 45 34 C San Bernardino Vly 56 51 0.2 17 5 16 47 35 E San Bernardino Vly 56 52 0.3 33 4 12 48 36 W San Bernardino Mtns 53 49 0.2 23 4 13 45 37 C San Bernardino Mtns 55 50 0.2 21 3 11 46 38 Big Bear Lake 55 52 0.2 32 5 8 48 San Bernardino County: Mojave Desert Air Basin 39 Phelan 51 49 0.2 14 4 10 45 40 Hesperia 58 54 0.2 12 4 10 50 41 Trona 55 51 0.2 40 4 15 47 42 Victorville 56 53 0.2 13 5 9 49 43 Yucca Vly 58 56 0.2 70 7 7 58 44 Barstow 58 55 0.2 12 5 9 51 45 Twentynine Palms 57 54 0.2 67 8 7 57 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SUN., APR. 26, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Antelope Valley AQI: 50 Ozone Banning Pass Area AQI: 47 Ozone Big Bear Lake AQI: 48 Ozone Coastal Area AQI: 49 Ozone Hemet/Elsinore Area AQI: 46 Ozone Inland Orange County AQI: 45 Ozone Metropolitan Area AQI: 48 Ozone Riverside Valley AQI: 50 Ozone San Bernardino Mountains AQI: 46 Ozone San Bernardino Valley AQI: 48 Ozone San Fernando/Santa Clarita Valleys AQI: 49 Ozone San Gabriel Mountains AQI: 47 Ozone San Gabriel Valley AQI: 48 Ozone Temecula/Anza Area AQI: 46 Ozone Victor Valley AQI: 50 Ozone MODERATE in the following area(s): Central Mojave Desert AQI: 58 PM10 Coachella Valley/Low Desert AQI: 61 PM10 Northern Mojave Desert AQI: 51 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Cool and breezy conditions are expected Sunday with a slight chance of lingering light showers, mainly in the mountains and foothills. Gusty west winds of 35 to 55 mph will continue in the mountains and deserts. High temperatures will remain 5 to 15 degrees below average. Inversion Base: 6024 FT | Breaking Temperature: 68 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 6220 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: 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 SUNDAY, APRIL 26, 2026 IN THE SOUTH COAST AIR BASIN.