SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: TUE., MAR. 03, 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 60 51 0.5 32 11 33 55 2 NW Coastal LA 60 49 0.6 28 13 31 58 3 SW Coastal LA 55 46 0.6 29 11 28 55 4 S Coastal LA 56 51 0.4 28 9 33 50 5 Southeast LA Co 57 50 1.1 31 11 33 55 6 W San Fernando Vly 58 52 0.7 24 7 31 48 7 E San Fernando Vly 63 55 0.6 31 9 32 51 8 W San Gabriel Vly 64 55 0.5 31 8 31 51 9 E San Gabriel Vly 63 55 0.6 31 5 26 51 10 Pomona Walnut Vly 58 50 0.6 31 11 35 55 11 S San Gabriel Vly 58 50 0.7 31 11 33 55 12 S Central LA Co 56 50 1.1 30 12 27 56 13 Santa Clarita Vly 57 51 0.3 24 5 22 47 15 San Gabriel Mts 58 52 0.5 31 5 30 48 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 52 47 0.4 18 9 32 50 Orange County: South Coast Air Basin 16 N Orange Co 59 51 0.5 34 11 22 55 17 Central Orange Co 54 46 0.6 24 11 34 55 18 N Coastal Orange Co 55 49 0.5 24 6 32 45 19 Saddleback Vly 57 50 0.3 34 5 30 46 20 Central Coastal 56 49 0.3 23 7 26 45 21 Capistrano Vly 56 50 0.4 25 7 22 46 Riverside County: South Coast Air Basin 22 Norco/Corona 63 55 0.5 44 11 29 55 23 Metro Riverside Co 66 58 0.7 49 13 30 61 24 Perris Vly 56 50 0.6 32 10 32 53 25 Lake Elsinore 55 51 0.4 25 7 20 47 26 Temecula Vly 52 47 0.3 24 5 18 44 27 Anza Vly 52 49 0.3 26 3 16 45 28 Hemet/San Jacinto 53 49 0.5 24 6 32 45 29 Banning 52 51 0.5 18 3 31 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 52 50 0.2 30 8 14 46 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 47 46 0.2 19 4 12 43 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 60 52 0.6 20 9 25 50 33 SW San Bernardino Vly 60 52 0.6 43 13 35 58 34 C San Bernardino Vly 56 51 0.6 20 10 41 53 35 E San Bernardino Vly 56 51 0.6 30 6 34 47 36 W San Bernardino Mtns 58 52 0.5 25 4 34 48 37 C San Bernardino Mtns 55 50 0.6 25 4 37 46 38 Big Bear Lake 52 50 0.6 20 7 34 46 San Bernardino County: Mojave Desert Air Basin 39 Phelan 51 49 0.5 25 4 35 45 40 Hesperia 53 47 0.5 27 5 36 44 41 Trona 54 44 0.3 17 3 9 41 42 Victorville 52 47 0.5 26 7 36 44 43 Yucca Vly 49 48 0.3 20 4 22 44 44 Barstow 47 43 0.4 19 4 40 40 45 Twentynine Palms 48 46 0.3 20 4 19 43 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON TUE., MAR. 03, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Antelope Valley AQI: 50 PM2.5 Banning Pass Area AQI: 47 Ozone Big Bear Lake AQI: 46 Ozone Central Mojave Desert AQI: 44 Ozone Coachella Valley/Low Desert AQI: 46 Ozone Northern Mojave Desert AQI: 41 Ozone San Bernardino Mountains AQI: 48 Ozone San Gabriel Mountains AQI: 48 Ozone Temecula/Anza Area AQI: 45 Ozone Victor Valley AQI: 45 Ozone MODERATE in the following area(s): Coastal Area AQI: 58 PM2.5 Hemet/Elsinore Area AQI: 53 PM2.5 Inland Orange County AQI: 55 PM2.5 Metropolitan Area AQI: 56 PM2.5 Riverside Valley AQI: 61 Ozone San Bernardino Valley AQI: 58 PM2.5 San Fernando/Santa Clarita Valleys AQI: 51 Ozone San Gabriel Valley AQI: 55 PM2.5 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Cooler temperatures will continue today as a trough moves across the region. Marine layer clouds may increase along the coast tonight into Wednesday morning with possible patchy fog or drizzle near the coastal slopes. Inversion Base: 2318 FT | Breaking Temperature: 69 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 3657 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 TUESDAY, MARCH 03, 2026 IN THE SOUTH COAST AIR BASIN.