SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: THU., APR. 02, 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 40 0.5 21 6 28 37 2 NW Coastal LA 50 42 0.3 18 7 13 39 3 SW Coastal LA 42 35 0.3 19 7 13 39 4 S Coastal LA 48 40 0.4 19 6 26 37 5 Southeast LA Co 66 48 0.4 20 8 25 44 6 W San Fernando Vly 52 44 0.4 16 7 16 41 7 E San Fernando Vly 56 47 0.4 20 7 21 44 8 W San Gabriel Vly 55 46 0.4 20 6 15 43 9 E San Gabriel Vly 53 44 0.2 15 6 16 41 10 Pomona Walnut Vly 54 42 0.3 23 9 26 50 11 S San Gabriel Vly 66 48 0.3 20 7 25 44 12 S Central LA Co 52 42 0.3 20 8 20 44 13 Santa Clarita Vly 56 49 0.2 16 5 11 45 15 San Gabriel Mts 58 49 0.3 22 9 15 50 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 59 50 0.2 13 8 4 46 Orange County: South Coast Air Basin 16 N Orange Co 53 42 0.2 20 7 18 39 17 Central Orange Co 41 34 0.3 18 7 14 39 18 N Coastal Orange Co 50 43 0.4 17 6 22 40 19 Saddleback Vly 51 45 0.2 19 5 15 42 20 Central Coastal 51 44 0.2 14 5 14 41 21 Capistrano Vly 49 43 0.2 24 5 11 40 Riverside County: South Coast Air Basin 22 Norco/Corona 59 45 0.3 23 8 17 44 23 Metro Riverside Co 61 45 0.3 23 8 20 44 24 Perris Vly 50 43 0.2 32 6 16 40 25 Lake Elsinore 48 41 0.2 11 5 10 38 26 Temecula Vly 42 38 0.2 41 5 9 38 27 Anza Vly 53 47 0.2 52 6 7 48 28 Hemet/San Jacinto 54 48 0.2 36 6 12 44 29 Banning 53 48 0.2 32 6 6 44 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 63 55 0.2 73 8 7 60 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 54 46 0.2 33 7 6 43 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 56 46 0.3 27 10 15 53 33 SW San Bernardino Vly 59 45 0.3 27 9 22 50 34 C San Bernardino Vly 62 52 0.2 38 9 19 50 35 E San Bernardino Vly 51 44 0.3 35 6 18 41 36 W San Bernardino Mtns 55 48 0.2 25 9 16 50 37 C San Bernardino Mtns 57 51 0.2 35 5 15 47 38 Big Bear Lake 58 50 0.2 33 7 13 46 San Bernardino County: Mojave Desert Air Basin 39 Phelan 52 48 0.2 15 7 14 44 40 Hesperia 55 49 0.2 13 7 15 45 41 Trona 57 48 0.2 10 5 13 44 42 Victorville 61 52 0.2 14 6 13 48 43 Yucca Vly 59 51 0.2 29 7 10 47 44 Barstow 60 50 0.2 17 6 18 46 45 Twentynine Palms 59 50 0.2 28 7 9 46 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON THU., APR. 02, 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: 44 Ozone Big Bear Lake AQI: 46 Ozone Central Mojave Desert AQI: 47 Ozone Coastal Area AQI: 41 Ozone Hemet/Elsinore Area AQI: 44 Ozone Inland Orange County AQI: 42 Ozone Metropolitan Area AQI: 44 PM2.5 Northern Mojave Desert AQI: 46 Ozone Riverside Valley AQI: 44 PM2.5 San Bernardino Mountains AQI: 50 PM2.5 San Fernando/Santa Clarita Valleys AQI: 45 Ozone San Gabriel Mountains AQI: 50 PM2.5 San Gabriel Valley AQI: 50 PM2.5 Temecula/Anza Area AQI: 48 PM10 Victor Valley AQI: 48 Ozone MODERATE in the following area(s): Coachella Valley/Low Desert AQI: 60 PM10 San Bernardino Valley AQI: 53 PM2.5 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Mostly cloudy skies are expected in the Basin, while sunny skies and high winds are expected in the Coachella Valley. Inversion Base: 4555 FT | Breaking Temperature: 73 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 4852 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 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 THURSDAY, APRIL 02, 2026 IN THE SOUTH COAST AIR BASIN.