Weather Alerts For Greenville, SC

# HEADLINE -------------------- AIR QUALITY ALERT IN EFFECT FROM 10 AM THIS MORNING TO 8 PM EDT THIS EVENING # SUMMARY -------------------- The South Carolina Department of Environmental Services (SCDES) has issued a Code Orange Ground Level Ozone Action Day for the Upstate region of South Carolina, in effect from 10 AM to 8 PM EDT Friday. High pressure will continue to control the weather over the Southeast states on Friday. High levels of pollutants will persist across the Upstate region of South Carolina. This, along with low humidity, very warm temperatures, and mostly sunny skies, will result in significant ground-level ozone production across the Upstate. An ozone action day means that atmospheric conditions will likely produce unhealthy concentrations of ground level ozone air pollution. A Code Orange forecast indicates that ground level ozone concentrations are expected to be unhealthy for sensitive groups, which includes people with lung disease, older adults, and children. Sensitive groups should reduce prolonged or heavy outdoor exertion, take more breaks, and do less intense activities, especially during afternoon and early evening hours. You can help prevent ozone pollution by walking or riding your bicycle, taking your lunch to work, reducing idling, conserving energy, and keeping your vehicle properly tuned. For additional information, please visit the South Carolina Department of Environmental Services website at http://www.des.sc.gov/ozone or the Environmental Protection Agency AirNow website at https://www.airnow.gov. # DETAILS -------------------- ISSUED AT Friday, April 24, 2026 at 5:34 AM EDT ISSUED BY Relayed by National Weather Service Greenville-Spartanburg SC HEADER Air Quality Alert Message # AREAS AFFECTED -------------------- Greater Pickens, Northern Spartanburg, Pickens Mountains, Abbeville, Anderson, Central Greenville, Cherokee, Greater Oconee, Greenville Mountains, Greenwood, Laurens, Oconee Mountains, Southern Greenville, Southern Spartanburg, Union Including the cities of Gaffney, Anderson, Abbeville, Calhoun Falls, Laurens, Clinton, Union, Monarch Mills, Ware Shoals, Ninety Six, Mountain Rest, Rocky Bottom, Glassy Mountain, Seneca, Walhalla, Oakway, Westminster, Easley, Dacusville, Clemson, Greenville, Taylors, Greer, Berea, Mauldin, Fork Shoals, Simpsonville, Fountain Inn, Boiling Springs Sc, Fingerville, Duncan, Lyman, Landrum, Wellford, Inman, and Spartanburg

Pollen Index: 11.1 Pollen Level: high Predominant Pollen: Oak, Hickory/Pecan and Willow. Concentration of pollen grains in the air for Saturday will be falling but will remain in the very high range. This forecast of lower pollen concentration is based on falling temperatures, rising humidity, and expected precipitation in the evening which tends to wash pollen out of the air.