SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: FRI., JAN. 02, 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 33 28 0.6 22 7 31 39 2 NW Coastal LA 31 28 0.5 19 12 20 56 3 SW Coastal LA 27 24 0.7 20 12 27 56 4 S Coastal LA 35 28 0.9 22 12 35 56 5 Southeast LA Co 36 29 1.5 22 11 33 55 6 W San Fernando Vly 35 30 0.9 17 10 24 53 7 E San Fernando Vly 32 28 0.8 21 7 28 39 8 W San Gabriel Vly 36 32 0.5 20 5 26 30 9 E San Gabriel Vly 35 32 0.4 14 8 25 44 10 Pomona Walnut Vly 34 29 0.7 20 9 31 50 11 S San Gabriel Vly 35 28 0.6 21 8 30 44 12 S Central LA Co 35 27 1.5 21 12 31 56 13 Santa Clarita Vly 37 32 0.4 16 7 23 39 15 San Gabriel Mts 36 32 0.6 19 5 28 30 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 38 33 0.4 12 7 30 39 Orange County: South Coast Air Basin 16 N Orange Co 36 31 0.5 22 12 28 56 17 Central Orange Co 36 31 0.9 22 11 30 55 18 N Coastal Orange Co 37 33 0.8 20 11 33 55 19 Saddleback Vly 38 35 0.3 21 8 27 44 20 Central Coastal 36 33 0.5 16 8 25 44 21 Capistrano Vly 35 33 0.4 12 5 21 31 Riverside County: South Coast Air Basin 22 Norco/Corona 38 31 0.6 24 15 27 62 23 Metro Riverside Co 37 31 0.7 27 15 32 62 24 Perris Vly 37 32 0.6 15 7 30 39 25 Lake Elsinore 37 32 0.4 9 9 19 50 26 Temecula Vly 36 32 0.4 13 3 19 30 27 Anza Vly 36 34 0.3 14 3 20 31 28 Hemet/San Jacinto 38 34 0.5 12 4 28 31 29 Banning 40 38 0.4 11 4 27 35 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 41 36 0.3 17 7 21 39 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 34 30 0.3 11 3 18 28 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 37 33 0.6 17 9 27 50 33 SW San Bernardino Vly 35 29 0.7 24 13 30 58 34 C San Bernardino Vly 32 28 0.5 15 10 31 53 35 E San Bernardino Vly 35 31 0.6 14 6 31 33 36 W San Bernardino Mtns 37 33 0.5 11 7 28 39 37 C San Bernardino Mtns 40 36 0.5 11 8 29 44 38 Big Bear Lake 41 38 0.5 12 10 29 53 San Bernardino County: Mojave Desert Air Basin 39 Phelan 44 42 0.5 12 6 26 39 40 Hesperia 37 32 0.5 12 7 28 39 41 Trona 38 33 0.3 10 3 15 31 42 Victorville 39 34 0.4 12 8 26 44 43 Yucca Vly 42 38 0.4 11 4 25 35 44 Barstow 37 34 0.4 13 7 34 39 45 Twentynine Palms 34 31 0.3 11 4 23 29 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON FRI., JAN. 02, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Antelope Valley AQI: 39 PM2.5 Banning Pass Area AQI: 35 Ozone Central Mojave Desert AQI: 35 Ozone Coachella Valley/Low Desert AQI: 39 PM2.5 Hemet/Elsinore Area AQI: 50 PM2.5 Northern Mojave Desert AQI: 39 PM2.5 San Bernardino Mountains AQI: 44 PM2.5 San Gabriel Mountains AQI: 30 Ozone San Gabriel Valley AQI: 50 PM2.5 Temecula/Anza Area AQI: 31 Ozone Victor Valley AQI: 44 PM2.5 MODERATE in the following area(s): Big Bear Lake AQI: 53 PM2.5 Coastal Area AQI: 56 PM2.5 Inland Orange County AQI: 55 PM2.5 Metropolitan Area AQI: 56 PM2.5 Riverside Valley AQI: 62 PM2.5 San Bernardino Valley AQI: 58 PM2.5 San Fernando/Santa Clarita Valleys AQI: 53 PM2.5 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Expect drier weather on Friday with light to moderate southerly winds. Most areas will be partly-to-mostly cloudy, and temperatures will be 2-4 degrees warmer than Thursday. Inversion Base: 486 FT | Breaking Temperature: 46 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 1981 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 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 FRIDAY, JANUARY 02, 2026 IN THE SOUTH COAST AIR BASIN.