SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: MON., JAN. 19, 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 40 30 0.5 36 18 44 68 2 NW Coastal LA 39 30 0.9 32 12 34 56 3 SW Coastal LA 36 28 0.9 34 20 47 71 4 S Coastal LA 48 37 1.2 55 15 53 62 5 Southeast LA Co 46 34 2.1 43 24 50 79 6 W San Fernando Vly 42 37 1.4 28 10 45 53 7 E San Fernando Vly 41 33 1.2 35 11 45 55 8 W San Gabriel Vly 46 36 0.9 34 9 45 50 9 E San Gabriel Vly 43 37 0.8 21 9 42 50 10 Pomona Walnut Vly 44 34 1.0 45 17 49 66 11 S San Gabriel Vly 44 32 1.0 41 20 50 71 12 S Central LA Co 48 34 2.1 58 24 46 79 13 Santa Clarita Vly 41 38 0.4 29 7 23 39 15 San Gabriel Mts 41 37 0.8 36 6 42 40 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 38 30 0.6 27 11 29 55 Orange County: South Coast Air Basin 16 N Orange Co 44 35 1.0 49 22 40 75 17 Central Orange Co 47 39 1.1 46 20 40 71 18 N Coastal Orange Co 48 42 1.1 41 10 48 53 19 Saddleback Vly 49 43 0.6 49 7 40 45 20 Central Coastal 48 43 0.8 36 9 37 50 21 Capistrano Vly 49 44 0.6 30 9 32 50 Riverside County: South Coast Air Basin 22 Norco/Corona 45 40 1.0 59 23 44 77 23 Metro Riverside Co 40 37 1.0 64 20 43 71 24 Perris Vly 45 39 0.7 42 13 40 58 25 Lake Elsinore 49 42 0.6 28 12 31 56 26 Temecula Vly 48 42 0.5 28 5 29 39 27 Anza Vly 46 44 0.4 30 3 27 41 28 Hemet/San Jacinto 47 43 0.7 27 7 37 40 29 Banning 44 42 0.7 23 5 34 39 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 42 40 0.3 36 9 26 50 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 36 33 0.3 19 5 21 31 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 46 40 0.9 45 11 41 55 33 SW San Bernardino Vly 43 37 1.0 59 20 46 71 34 C San Bernardino Vly 38 36 0.9 30 9 46 50 35 E San Bernardino Vly 41 37 0.8 43 7 41 40 36 W San Bernardino Mtns 43 41 0.8 38 5 41 39 37 C San Bernardino Mtns 43 41 0.8 33 3 40 38 38 Big Bear Lake 45 43 0.8 27 10 37 53 San Bernardino County: Mojave Desert Air Basin 39 Phelan 46 44 0.7 30 5 36 41 40 Hesperia 39 34 0.8 29 7 38 39 41 Trona 28 22 0.4 21 4 16 22 42 Victorville 39 34 0.7 29 10 36 53 43 Yucca Vly 43 41 0.5 18 6 28 38 44 Barstow 36 23 0.6 28 6 36 34 45 Twentynine Palms 38 36 0.4 18 6 26 33 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON MON., JAN. 19, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Banning Pass Area AQI: 39 Ozone Central Mojave Desert AQI: 38 Ozone Coachella Valley/Low Desert AQI: 50 PM2.5 Northern Mojave Desert AQI: 34 NO2 San Bernardino Mountains AQI: 39 NO2 San Gabriel Mountains AQI: 40 NO2 Temecula/Anza Area AQI: 41 Ozone MODERATE in the following area(s): Antelope Valley AQI: 55 PM2.5 Big Bear Lake AQI: 53 PM2.5 Coastal Area AQI: 71 PM2.5 Hemet/Elsinore Area AQI: 58 PM2.5 Inland Orange County AQI: 71 PM2.5 Metropolitan Area AQI: 79 PM2.5 Riverside Valley AQI: 77 PM2.5 San Bernardino Valley AQI: 71 PM2.5 San Fernando/Santa Clarita Valleys AQI: 55 PM2.5 San Gabriel Valley AQI: 71 PM2.5 Victor Valley AQI: 53 PM2.5 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Weak Santa Ana winds continue, with warm and dry conditions and high temperatures 10–15° above average in the valleys. Patchy low clouds or fog may briefly develop along the immediate coast early in the morning, then clear as offshore flow strengthens again by late day. Inversion Base: 486 FT | Breaking Temperature: 67 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 1948 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 MONDAY, JANUARY 19, 2026 IN THE SOUTH COAST AIR BASIN.