Active Weather Alerts
Dense Fog Advisory
Issued: 7:21 AM Sep. 1, 2026 – National Weather Service
...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... * WHAT...Dense fog with visibility occasionally dipping below one half of a mile expected. * WHERE...Winthrop Harbor to Wilmette Harbor IL. * WHEN...Until 4 PM CDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. * ADDITIONAL DETAILS...The densest fog is favored near and north of Waukegan. Visibility will worsen with increasing distance away from the shoreline. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. &&
Heat Advisory
Issued: 6:48 AM Sep. 1, 2026 – National Weather Service
...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 9 PM CDT THIS EVENING... * WHAT...Heat index values of 100 to 110 expected. * WHERE...Boone, De Kalb, Lee, Ogle, Winnebago, Central Cook, DuPage, Kane, Lake IL, McHenry, and Northern Cook Counties. * WHEN...From noon today to 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...If showers and thunderstorms move across the area later this morning, the hot temperatures may not materialize. 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. Consider altering outdoor plans. &&
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