Cook County, IL — Severe Weather & Radar
No active severe-weather warnings for Cook County, IL right now. Live radar is below — set up alerts to get warned the moment one is issued.
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Severe-weather outlook
No severe-weather risk is outlooked for Cook County, IL today.
3-day forecast
Forecast: NOAA National Blend of Models.
When is severe weather most likely near Cook?
Around Cook County and the Midwest, severe weather is most active from April through June.
The main threats are damaging thunderstorm winds — including widespread, long-lived derechos — along with large hail and tornadoes.
Based on long-term NOAA / NWS Storm Prediction Center climatology.
In Cook County, IL
Cook County, IL has an estimated 5,300,000 residents, plus 48 hospitals, 201 nursing homes, 1,402 schools, 20 mobile-home parks, 137 dialysis centers that could be in a storm's path. Atmostorm shows which of them fall inside an active warning polygon.
Emergency-management view: who & what is in the warned path →
Nearby areas
Live radar and active alerts for places near Cook:
Not an official source — always confirm with the National Weather Service at weather.gov. Data aggregated from NWS/SPC. Facility and population figures are decision-support estimates.