Weather Alerts For Lake Saint Louis, MO

URGENT - WEATHER MESSAGE National Weather Service St Louis MO 830 AM CST Thu Dec 25 2025 Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Adams IL- Brown IL-Pike IL-Calhoun IL-Jersey IL-Madison IL-Knox MO-Lewis MO- Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO-Lincoln MO-Warren MO-Saint Charles MO- Including the cities of Columbia, Pittsfield, Quincy, Vandalia, Alton, Litchfield, Edwardsville, Mexico, Saint Charles, Mount Sterling, Hannibal, Bowling Green, and Fulton 830 AM CST Thu Dec 25 2025 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL NOON CST TODAY... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, and northeast Missouri. * WHEN...Until noon CST today. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. &&