Frost Advisory
FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM CDT SATURDAY
Take steps now to protect tender plants from the cold.
Jersey County, Illinois: tornado and severe weather warnings
A frost advisory is in effect for Jersey County as of 4:15 PM CDT.
Open the live map on Jersey 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 Jersey County. Tap your own street on it for times that apply to you.
The last 12 months in Jersey County
- 5 tornado warnings
- 20 severe thunderstorm warnings
- 3 flash flood warnings
- 6 tornado watches
- 4 severe thunderstorm watches
The most recent tornado warning that included Jersey County was issued Apr 27, 2026 by the Weather Service office in St. Louis, MO.
| Date | Issued | Type | Office | Product |
|---|---|---|---|---|
| Jul 10, 2026 | 8:40 PM CDT | Severe thunderstorm warning | LSX | text |
| Jul 10, 2026 | 8:21 PM CDT | Severe thunderstorm warning | LSX | text |
| Jun 24, 2026 | 5:45 PM CDT | Severe thunderstorm warning | LSX | text |
| Jun 8, 2026 | 10:32 AM CDT | Flash flood warning | LSX | text |
| Jun 1, 2026 | 4:37 AM CDT | Flash flood warning | LSX | text |
| May 18, 2026 | 7:21 AM CDT | Severe thunderstorm warning | LSX | text |
| May 3, 2026 | 10:38 PM CDT | Severe thunderstorm warning | LSX | text |
| May 3, 2026 | 10:15 PM CDT | Severe thunderstorm warning | LSX | text |
| Apr 27, 2026 | 6:41 PM CDT | Tornado warning | LSX | text |
| Apr 27, 2026 | 6:28 PM CDT | Severe thunderstorm warning | LSX | text |
| Apr 27, 2026 | 6:01 PM CDT | Tornado warning | LSX | text |
| Apr 27, 2026 | 5:59 PM CDT | Severe thunderstorm warning | LSX | text |
A warning counts here if the Weather Service listed Jersey County in it, even if the warned area covered only part of the county.
Nearby
- Calhoun County, IL
- Greene County, IL
- Macoupin County, IL
- St. Charles County, MO
- Madison County, IL
- St. Louis County, MO
- St. Louis city, MO
- Lincoln County, MO
- 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.