Weather Alerts For Mount Sterling, IL

# HEADLINE -------------------- HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO MIDNIGHT CDT THURSDAY NIGHT # DETAILS -------------------- WHAT Heat index values up to 105 expected. WHERE Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri. WHEN From noon today to midnight CDT Thursday Night. IMPACTS Hot temperatures and high humidity may cause heat illnesses. ISSUED AT Sunday, June 28, 2026 at 2:00 AM CDT ISSUED BY National Weather Service St Louis MO HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. # AREAS AFFECTED -------------------- Adams IL, Shelby MO, Audrain MO, Bond IL, Boone MO, Brown IL, Calhoun IL, Callaway MO, Cole MO, Crawford MO, Fayette IL, Gasconade MO, Greene IL, Iron MO, Jersey IL, Knox MO, Lewis MO, Lincoln MO, Macoupin IL, Madison MO, Marion IL, Marion MO, Moniteau MO, Monroe MO, Montgomery IL, Montgomery MO, Osage MO, Pike IL, Pike MO, Ralls MO, Reynolds MO, Saint Francois MO, Washington MO Including the cities of Vandalia, Bowling Green, Fulton, Centralia, Mount Sterling, Pittsfield, Salem, Farmington, Litchfield, Columbia, Quincy, Hannibal, Mexico, and Jefferson City