Mercer County, IL — Severe Weather & Radar
No active severe-weather warnings for Mercer 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 Mercer County, IL today.
3-day forecast
Forecast: NOAA National Blend of Models.
When is severe weather most likely near Mercer?
Around Mercer 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 Mercer County, IL
Mercer County, IL has an estimated 16,000 residents, plus 1 hospitals, 2 nursing homes, 8 schools 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 Mercer:
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.