SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: TUE., JUN. 30, 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 52 45 0.5 21 10 17 53 2 NW Coastal LA 42 38 0.4 22 7 11 39 3 SW Coastal LA 41 38 0.2 21 7 13 39 4 S Coastal LA 44 40 0.2 22 8 22 44 5 Southeast LA Co 48 44 0.4 22 8 18 44 6 W San Fernando Vly 56 49 0.3 23 7 11 45 7 E San Fernando Vly 58 50 0.4 23 9 14 50 8 W San Gabriel Vly 56 50 0.3 24 11 12 55 9 E San Gabriel Vly 65 55 0.3 23 9 16 51 10 Pomona Walnut Vly 61 51 0.3 37 9 16 50 11 S San Gabriel Vly 53 48 0.3 24 9 15 50 12 S Central LA Co 44 40 0.2 21 8 15 44 13 Santa Clarita Vly 65 55 0.2 25 9 13 51 15 San Gabriel Mts 64 56 0.3 37 11 16 55 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 73 64 0.2 33 10 14 80 Orange County: South Coast Air Basin 16 N Orange Co 52 46 0.2 27 7 11 43 17 Central Orange Co 47 43 0.2 22 7 11 40 18 N Coastal Orange Co 42 39 0.2 21 5 19 36 19 Saddleback Vly 46 43 0.2 26 4 11 40 20 Central Coastal 42 39 0.2 20 5 11 36 21 Capistrano Vly 41 37 0.2 26 5 7 34 Riverside County: South Coast Air Basin 22 Norco/Corona 56 52 0.3 33 8 12 48 23 Metro Riverside Co 64 56 0.6 34 10 12 54 24 Perris Vly 63 57 0.4 29 8 15 58 25 Lake Elsinore 51 49 0.2 17 7 5 45 26 Temecula Vly 43 40 0.2 36 7 5 39 27 Anza Vly 52 49 0.2 43 7 5 45 28 Hemet/San Jacinto 57 52 0.3 31 7 14 48 29 Banning 70 60 0.2 28 7 9 67 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 69 66 0.2 56 12 6 87 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 59 54 0.2 33 8 6 50 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 67 58 0.4 45 12 17 61 33 SW San Bernardino Vly 59 52 0.3 40 10 18 53 34 C San Bernardino Vly 71 59 0.3 32 10 21 64 35 E San Bernardino Vly 69 59 0.4 31 9 18 64 36 W San Bernardino Mtns 71 62 0.3 38 12 19 74 37 C San Bernardino Mtns 78 67 0.3 34 7 20 90 38 Big Bear Lake 69 64 0.3 30 6 17 80 San Bernardino County: Mojave Desert Air Basin 39 Phelan 72 67 0.2 32 7 17 90 40 Hesperia 73 66 0.2 31 9 19 87 41 Trona 59 56 0.2 25 6 17 54 42 Victorville 78 69 0.2 32 9 17 97 43 Yucca Vly 66 63 0.2 30 7 13 77 44 Barstow 69 66 0.2 28 8 32 87 45 Twentynine Palms 62 60 0.2 30 8 12 67 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON TUE., JUN. 30, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Coastal Area AQI: 44 PM2.5 Inland Orange County AQI: 40 Ozone Temecula/Anza Area AQI: 45 Ozone MODERATE in the following area(s): Antelope Valley AQI: 80 Ozone Banning Pass Area AQI: 67 Ozone Big Bear Lake AQI: 80 Ozone Central Mojave Desert AQI: 77 Ozone Coachella Valley/Low Desert AQI: 87 Ozone Hemet/Elsinore Area AQI: 58 Ozone Metropolitan Area AQI: 53 PM2.5 Northern Mojave Desert AQI: 87 Ozone Riverside Valley AQI: 54 Ozone San Bernardino Mountains AQI: 90 Ozone San Bernardino Valley AQI: 64 Ozone San Fernando/Santa Clarita Valleys AQI: 51 Ozone San Gabriel Mountains AQI: 55 PM2.5 San Gabriel Valley AQI: 55 PM2.5 Victor Valley AQI: 97 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Tuesday is expected to be slightly warmer than Monday, but with temperatures still below average for this time of year. Night and morning coastal low clouds may reach into the western valleys. Inversion Base: 3729 FT | Breaking Temperature: 79 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 3788 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, JUNE 30, 2026 IN THE SOUTH COAST AIR BASIN.