Freeze Warning
FREEZE WARNING REMAINS IN EFFECT FROM 5 AM TO 8 AM CDT SATURDAY
Take steps now to protect tender plants from the cold.
Boone County, Illinois: tornado and severe weather warnings
A freeze warning is in effect for Boone County as of 6:29 PM CDT.
Open the live map on Boone County Get a message when a warning reaches your address
The map shows radar, every warning shape, and the path and arrival time of each storm cell headed toward the center of Boone County. Tap your own street on it for times that apply to you.
The last 12 months in Boone County
- 2 tornado warnings
- 18 severe thunderstorm warnings
- 4 flash flood warnings
- 4 tornado watches
- 11 severe thunderstorm watches
The most recent tornado warning that included Boone County was issued Apr 17, 2026 by the Weather Service office in Chicago, IL.
| Date | Issued | Type | Office | Product |
|---|---|---|---|---|
| Aug 21, 2026 | 3:45 PM CDT | Severe thunderstorm warning | LOT | text |
| Aug 21, 2026 | 2:17 PM CDT | Severe thunderstorm warning | LOT | text |
| Aug 11, 2026 | 9:22 AM CDT | Severe thunderstorm warning | LOT | text |
| Aug 11, 2026 | 3:11 AM CDT | Severe thunderstorm warning | LOT | text |
| Jul 3, 2026 | 7:33 PM CDT | Severe thunderstorm warning | LOT | text |
| Jul 3, 2026 | 7:06 PM CDT | Severe thunderstorm warning | LOT | text |
| Jul 3, 2026 | 11:14 AM CDT | Severe thunderstorm warning | LOT | text |
| Jun 24, 2026 | 4:54 PM CDT | Severe thunderstorm warning | LOT | text |
| Jun 17, 2026 | 8:31 PM CDT | Severe thunderstorm warning | LOT | text |
| Jun 11, 2026 | 5:52 PM CDT | Flash flood warning | LOT | text |
| Jun 11, 2026 | 5:39 PM CDT | Severe thunderstorm warning | LOT | text |
| Jun 10, 2026 | 2:09 PM CDT | Severe thunderstorm warning | LOT | text |
A warning counts here if the Weather Service listed Boone County in it, even if the warned area covered only part of the county.
Nearby
- Winnebago County, IL
- McHenry County, IL
- Rock County, WI
- Walworth County, WI
- DeKalb County, IL
- Ogle County, IL
- Kane County, IL
- Stephenson County, IL
- All of Illinois
What the alerts mean
Alerts come from the National Weather Service and refresh every minute. Past warnings come from the Iowa Environmental Mesonet's archive of Weather Service products. During a warning, also listen to local radio, TV or a weather radio.