SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SAT., NOV. 29, 2025 -------------------------------------------------------------------------------- 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 47 39 0.6 47 30 37 90 2 NW Coastal LA 44 40 0.7 42 24 27 79 3 SW Coastal LA 45 41 0.8 44 16 31 64 4 S Coastal LA 51 43 1.0 43 15 29 62 5 Southeast LA Co 51 41 1.2 46 29 43 88 6 W San Fernando Vly 51 43 1.1 37 20 30 71 7 E San Fernando Vly 52 43 0.9 46 22 35 75 8 W San Gabriel Vly 55 44 0.8 45 20 34 71 9 E San Gabriel Vly 51 41 0.6 32 18 35 68 10 Pomona Walnut Vly 53 43 0.9 45 30 36 90 11 S San Gabriel Vly 52 39 0.9 46 31 37 92 12 S Central LA Co 52 42 1.2 45 21 43 73 13 Santa Clarita Vly 50 41 0.5 38 13 29 58 15 San Gabriel Mts 49 41 0.8 43 10 34 53 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 42 33 0.7 32 13 30 58 Orange County: South Coast Air Basin 16 N Orange Co 52 40 0.6 50 31 28 92 17 Central Orange Co 47 38 1.0 42 26 36 82 18 N Coastal Orange Co 50 45 0.9 40 10 31 53 19 Saddleback Vly 51 45 0.4 50 12 32 56 20 Central Coastal 52 46 0.6 34 12 27 56 21 Capistrano Vly 52 47 0.6 29 10 23 53 Riverside County: South Coast Air Basin 22 Norco/Corona 54 47 0.8 63 34 33 97 23 Metro Riverside Co 56 47 0.9 72 42 35 117 24 Perris Vly 49 45 1.0 44 25 38 81 25 Lake Elsinore 52 45 0.6 27 18 22 68 26 Temecula Vly 47 43 0.5 26 8 22 44 27 Anza Vly 46 43 0.4 26 8 22 44 28 Hemet/San Jacinto 49 45 0.9 32 12 37 56 29 Banning 49 46 0.8 28 15 34 62 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 46 0.3 38 18 24 68 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 38 34 0.3 25 8 18 44 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 61 50 0.8 27 22 36 75 33 SW San Bernardino Vly 53 44 0.9 63 36 41 102 34 C San Bernardino Vly 46 37 1.1 38 24 47 79 35 E San Bernardino Vly 51 43 1.0 46 22 40 75 36 W San Bernardino Mtns 50 42 1.0 31 11 40 55 37 C San Bernardino Mtns 49 42 1.1 36 13 41 58 38 Big Bear Lake 51 46 1.0 33 18 39 68 San Bernardino County: Mojave Desert Air Basin 39 Phelan 50 47 0.8 30 10 33 53 40 Hesperia 43 37 0.9 28 11 38 55 41 Trona 32 25 0.4 19 8 12 44 42 Victorville 45 39 0.8 28 15 33 62 43 Yucca Vly 55 49 0.5 27 15 26 62 44 Barstow 41 33 0.7 25 17 35 66 45 Twentynine Palms 43 38 0.4 27 11 24 55 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SAT., NOV. 29, 2025, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Temecula/Anza Area AQI: 44 PM2.5 MODERATE in the following area(s): Antelope Valley AQI: 58 PM2.5 Banning Pass Area AQI: 62 PM2.5 Big Bear Lake AQI: 68 PM2.5 Central Mojave Desert AQI: 62 PM2.5 Coachella Valley/Low Desert AQI: 68 PM2.5 Coastal Area AQI: 79 PM2.5 Hemet/Elsinore Area AQI: 81 PM2.5 Inland Orange County AQI: 82 PM2.5 Metropolitan Area AQI: 92 PM2.5 Northern Mojave Desert AQI: 66 PM2.5 San Bernardino Mountains AQI: 58 PM2.5 San Fernando/Santa Clarita Valleys AQI: 75 PM2.5 San Gabriel Mountains AQI: 53 PM2.5 San Gabriel Valley AQI: 92 PM2.5 Victor Valley AQI: 62 PM2.5 UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Riverside Valley AQI: 117 PM2.5 San Bernardino Valley AQI: 102 PM2.5 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Cooling continues as onshore flow strengthens. The marine layer deepens, bringing more night and morning low clouds and fog along the coast. Highs cooler than Friday, especially inland. Dry overall. Inversion Base: 486 FT | Breaking Temperature: 62 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 2094 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: Prohibited in South Coast Air Basin Below 3000 ft 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 SATURDAY, NOVEMBER 29, 2025 IN THE SOUTH COAST AIR BASIN.