SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SUN., MAR. 29, 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 76 63 0.6 38 13 34 77 2 NW Coastal LA 63 56 0.7 36 12 18 56 3 SW Coastal LA 58 49 0.4 38 12 25 56 4 S Coastal LA 71 61 0.6 43 14 30 71 5 Southeast LA Co 75 63 0.8 44 13 29 77 6 W San Fernando Vly 69 62 0.5 34 7 23 74 7 E San Fernando Vly 74 66 0.6 37 8 27 87 8 W San Gabriel Vly 83 68 0.5 37 9 21 93 9 E San Gabriel Vly 85 75 0.6 30 9 30 115 10 Pomona Walnut Vly 83 71 0.7 44 12 38 101 11 S San Gabriel Vly 80 67 0.6 43 13 26 90 12 S Central LA Co 71 59 0.8 40 12 26 64 13 Santa Clarita Vly 79 71 0.4 34 8 20 101 15 San Gabriel Mts 73 66 0.5 36 7 24 87 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 69 61 0.4 33 10 9 71 Orange County: South Coast Air Basin 16 N Orange Co 76 67 0.4 48 12 20 90 17 Central Orange Co 67 61 0.6 46 12 20 71 18 N Coastal Orange Co 68 60 0.6 43 11 26 67 19 Saddleback Vly 66 62 0.3 48 6 24 74 20 Central Coastal 68 61 0.4 40 9 18 71 21 Capistrano Vly 67 61 0.4 36 9 15 71 Riverside County: South Coast Air Basin 22 Norco/Corona 74 70 0.6 56 11 30 100 23 Metro Riverside Co 83 77 0.6 60 15 37 122 24 Perris Vly 62 59 0.6 49 10 30 64 25 Lake Elsinore 62 59 0.4 34 6 12 64 26 Temecula Vly 54 51 0.3 40 4 12 47 27 Anza Vly 55 52 0.3 44 4 13 48 28 Hemet/San Jacinto 59 56 0.5 41 5 25 54 29 Banning 61 56 0.5 37 4 22 54 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 66 62 0.2 51 10 14 74 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 52 50 0.2 34 7 12 46 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 85 77 0.6 27 10 23 122 33 SW San Bernardino Vly 79 72 0.6 54 13 33 105 34 C San Bernardino Vly 80 73 0.6 47 10 30 108 35 E San Bernardino Vly 78 74 0.6 53 7 33 112 36 W San Bernardino Mtns 77 71 0.6 33 7 26 101 37 C San Bernardino Mtns 73 69 0.6 44 4 27 97 38 Big Bear Lake 66 63 0.6 41 5 26 77 San Bernardino County: Mojave Desert Air Basin 39 Phelan 62 58 0.5 31 5 24 61 40 Hesperia 63 61 0.5 30 6 28 71 41 Trona 55 48 0.3 28 8 22 44 42 Victorville 66 63 0.5 31 9 24 77 43 Yucca Vly 62 58 0.3 29 5 22 61 44 Barstow 70 61 0.4 31 8 43 71 45 Twentynine Palms 55 54 0.2 31 6 20 50 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SUN., MAR. 29, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Temecula/Anza Area AQI: 48 Ozone MODERATE in the following area(s): Antelope Valley AQI: 71 Ozone Banning Pass Area AQI: 54 Ozone Big Bear Lake AQI: 77 Ozone Central Mojave Desert AQI: 61 Ozone Coachella Valley/Low Desert AQI: 74 Ozone Coastal Area AQI: 71 Ozone Hemet/Elsinore Area AQI: 64 Ozone Inland Orange County AQI: 74 Ozone Metropolitan Area AQI: 90 Ozone Northern Mojave Desert AQI: 71 Ozone San Gabriel Mountains AQI: 87 Ozone Victor Valley AQI: 77 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Riverside Valley AQI: 122 Ozone San Bernardino Mountains AQI: 101 Ozone San Bernardino Valley AQI: 122 Ozone San Fernando/Santa Clarita Valleys AQI: 101 Ozone San Gabriel Valley AQI: 115 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Very warm conditions continue, with temperatures 15–25° above average inland. Patchy morning low clouds and fog are expected, clearing by mid-morning. Mostly sunny and dry, with limited marine layer influence. Inversion Base: 486 FT | Breaking Temperature: 83 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 1169 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: NO-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, MARCH 29, 2026 IN THE SOUTH COAST AIR BASIN.