SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: WED., MAR. 25, 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 71 58 0.6 36 19 30 69 2 NW Coastal LA 62 53 0.5 34 19 13 69 3 SW Coastal LA 55 47 0.2 35 16 18 64 4 S Coastal LA 55 50 0.3 34 11 22 55 5 Southeast LA Co 62 55 0.6 35 16 30 64 6 W San Fernando Vly 80 69 0.5 31 14 17 97 7 E San Fernando Vly 73 61 0.5 36 16 24 71 8 W San Gabriel Vly 77 64 0.5 36 15 15 80 9 E San Gabriel Vly 90 72 0.5 35 16 22 105 10 Pomona Walnut Vly 80 64 0.5 36 18 27 80 11 S San Gabriel Vly 68 58 0.4 36 19 30 69 12 S Central LA Co 62 54 0.6 35 15 19 62 13 Santa Clarita Vly 91 73 0.3 31 11 26 108 15 San Gabriel Mts 82 68 0.5 35 11 25 93 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 89 70 0.4 25 12 13 100 Orange County: South Coast Air Basin 16 N Orange Co 66 56 0.4 37 15 16 62 17 Central Orange Co 55 47 0.5 31 13 9 58 18 N Coastal Orange Co 53 48 0.3 31 6 18 44 19 Saddleback Vly 61 55 0.3 37 7 15 51 20 Central Coastal 59 53 0.3 29 8 15 49 21 Capistrano Vly 64 58 0.4 32 9 15 61 Riverside County: South Coast Air Basin 22 Norco/Corona 76 66 0.4 45 14 20 87 23 Metro Riverside Co 79 70 0.5 49 18 24 100 24 Perris Vly 78 70 0.4 38 11 26 100 25 Lake Elsinore 70 63 0.4 28 9 16 77 26 Temecula Vly 61 58 0.3 40 6 16 61 27 Anza Vly 65 61 0.3 45 6 17 71 28 Hemet/San Jacinto 69 65 0.4 34 6 27 84 29 Banning 71 66 0.4 31 6 26 87 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 73 70 0.3 55 20 19 100 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 53 51 0.2 34 9 14 50 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 88 72 0.6 28 13 23 105 33 SW San Bernardino Vly 78 65 0.5 44 17 26 84 34 C San Bernardino Vly 83 75 0.5 39 13 30 115 35 E San Bernardino Vly 88 77 0.5 40 10 27 122 36 W San Bernardino Mtns 85 72 0.5 31 9 26 105 37 C San Bernardino Mtns 94 78 0.4 37 6 27 126 38 Big Bear Lake 77 67 0.4 35 8 27 90 San Bernardino County: Mojave Desert Air Basin 39 Phelan 80 70 0.4 29 6 23 100 40 Hesperia 82 71 0.4 29 9 26 101 41 Trona 62 55 0.2 24 6 16 51 42 Victorville 75 67 0.4 29 11 23 90 43 Yucca Vly 71 66 0.3 27 12 23 87 44 Barstow 70 65 0.3 27 11 36 84 45 Twentynine Palms 63 60 0.3 29 12 21 67 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON WED., MAR. 25, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... MODERATE in the following area(s): Antelope Valley AQI: 100 Ozone Banning Pass Area AQI: 87 Ozone Big Bear Lake AQI: 90 Ozone Central Mojave Desert AQI: 87 Ozone Coachella Valley/Low Desert AQI: 100 Ozone Coastal Area AQI: 69 PM2.5 Hemet/Elsinore Area AQI: 100 Ozone Inland Orange County AQI: 61 Ozone Metropolitan Area AQI: 69 PM2.5 Northern Mojave Desert AQI: 84 Ozone Riverside Valley AQI: 100 Ozone San Gabriel Mountains AQI: 93 Ozone Temecula/Anza Area AQI: 71 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): San Bernardino Mountains AQI: 126 Ozone San Bernardino Valley AQI: 122 Ozone San Fernando/Santa Clarita Valleys AQI: 108 Ozone San Gabriel Valley AQI: 105 Ozone Victor Valley AQI: 101 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Inland temperatures are expected to be 10-20 degrees above average on Wednesday. Low clouds are expected along the coast and may reach western valleys. Inversion Base: 486 FT | Breaking Temperature: 74 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 1572 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 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 WEDNESDAY, MARCH 25, 2026 IN THE SOUTH COAST AIR BASIN.