Severe Thunderstorm Warning — De Kalb County, Illinois
A thunderstorm capable of producing damaging winds of 58+ mph and/or 1-inch hail has been detected.
Current Status
✅ No Active Severe Thunderstorm Warning
Last one for De Kalb County ended August 11, 2026 at 11:16 AM ET. This page updates automatically the moment the National Weather Service issues a new one.
Event Details
Event Type
Severe Thunderstorm Warning
Severity
severe
Issued By
NWS Chicago IL
Last Checked
42 minutes ago
Other Active Alerts in Illinois
Tornado Warning
Severe Thunderstorm Warning
Severe Thunderstorm Warning
Severe Thunderstorm Watch
Severe Thunderstorm Warning
Severe Thunderstorm Warning
Get Severe Thunderstorm Warning Alerts for De Kalb County
StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
Frequently Asked Questions
What does a Severe Thunderstorm Warning mean for De Kalb County, Illinois?
A thunderstorm capable of producing damaging winds of 58+ mph and/or 1-inch hail has been detected.
Is this Severe Thunderstorm Warning currently active?
Not right now. The last one for De Kalb County ended August 11, 2026 at 11:16 AM ET. This page automatically updates the moment a new one is issued.
How do I get notified about Severe Thunderstorm Warning alerts for De Kalb County?
Download StormCast free on Google Play and set De Kalb County, Illinois as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.