SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: FRI., MAY. 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 48 43 0.5 18 5 24 40 2 NW Coastal LA 41 38 0.3 17 4 16 35 3 SW Coastal LA 38 33 0.3 20 5 11 31 4 S Coastal LA 47 43 0.3 26 5 21 40 5 Southeast LA Co 50 45 0.4 27 5 24 42 6 W San Fernando Vly 52 49 0.4 16 4 17 45 7 E San Fernando Vly 51 47 0.4 18 4 20 44 8 W San Gabriel Vly 53 48 0.3 20 5 15 44 9 E San Gabriel Vly 58 51 0.3 20 5 14 47 10 Pomona Walnut Vly 58 50 0.4 28 6 26 46 11 S San Gabriel Vly 53 48 0.3 26 5 24 44 12 S Central LA Co 48 43 0.3 22 5 22 40 13 Santa Clarita Vly 55 51 0.3 16 4 15 47 15 San Gabriel Mts 54 50 0.3 27 4 16 46 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 58 55 0.3 16 6 7 51 Orange County: South Coast Air Basin 16 N Orange Co 51 46 0.2 29 5 16 43 17 Central Orange Co 44 40 0.3 29 5 16 37 18 N Coastal Orange Co 45 41 0.3 25 4 19 38 19 Saddleback Vly 47 44 0.2 24 3 16 41 20 Central Coastal 44 41 0.2 21 3 14 38 21 Capistrano Vly 42 39 0.2 25 3 12 36 Riverside County: South Coast Air Basin 22 Norco/Corona 58 52 0.3 23 5 17 48 23 Metro Riverside Co 63 56 0.3 22 6 19 54 24 Perris Vly 53 48 0.3 25 5 17 44 25 Lake Elsinore 51 46 0.2 11 3 10 43 26 Temecula Vly 44 40 0.2 40 3 9 37 27 Anza Vly 46 44 0.2 51 4 8 47 28 Hemet/San Jacinto 54 48 0.3 38 5 14 44 29 Banning 65 58 0.3 34 7 7 61 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 59 55 0.2 70 12 7 58 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 52 50 0.2 39 9 7 50 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 57 49 0.3 32 6 13 45 33 SW San Bernardino Vly 58 51 0.4 27 6 22 47 34 C San Bernardino Vly 65 55 0.3 24 6 18 51 35 E San Bernardino Vly 64 57 0.3 30 7 18 58 36 W San Bernardino Mtns 58 52 0.3 27 6 15 48 37 C San Bernardino Mtns 63 53 0.3 27 4 17 49 38 Big Bear Lake 63 59 0.3 35 7 14 64 San Bernardino County: Mojave Desert Air Basin 39 Phelan 55 53 0.3 22 4 12 49 40 Hesperia 59 53 0.3 21 6 14 49 41 Trona 52 50 0.2 17 5 8 46 42 Victorville 56 52 0.3 22 6 11 48 43 Yucca Vly 64 61 0.2 42 8 11 71 44 Barstow 60 57 0.2 23 4 19 58 45 Twentynine Palms 61 56 0.2 40 9 10 54 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON FRI., MAY. 29, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Coastal Area AQI: 40 Ozone Hemet/Elsinore Area AQI: 44 Ozone Inland Orange County AQI: 41 Ozone Metropolitan Area AQI: 43 Ozone San Bernardino Mountains AQI: 49 Ozone San Fernando/Santa Clarita Valleys AQI: 47 Ozone San Gabriel Mountains AQI: 46 Ozone San Gabriel Valley AQI: 47 Ozone Temecula/Anza Area AQI: 47 PM10 Victor Valley AQI: 49 Ozone MODERATE in the following area(s): Antelope Valley AQI: 51 Ozone Banning Pass Area AQI: 61 Ozone Big Bear Lake AQI: 64 Ozone Central Mojave Desert AQI: 71 Ozone Coachella Valley/Low Desert AQI: 58 PM10 Northern Mojave Desert AQI: 58 Ozone Riverside Valley AQI: 54 Ozone San Bernardino Valley AQI: 58 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ High temperatures will warm a few degrees but remain below average. Morning low clouds are expected on Friday. Inversion Base: 7767 FT | Breaking Temperature: 78 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 6244 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 FRIDAY, MAY 29, 2026 IN THE SOUTH COAST AIR BASIN.