Monroe County, Illinois: tornado and severe weather warnings
Nothing is in effect for Monroe County as of 4:13 PM CDT: no warnings, watches or advisories. This page checks the National Weather Service every minute.
Open the live map on Monroe 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 Monroe County. Tap your own street on it for times that apply to you.
The last 12 months in Monroe County
- 2 tornado warnings
- 11 severe thunderstorm warnings
- 3 flash flood warnings
- 6 tornado watches
- 7 severe thunderstorm watches
The most recent tornado warning that included Monroe County was issued Mar 15, 2026 by the Weather Service office in St. Louis, MO.
| Date | Issued | Type | Office | Product |
|---|---|---|---|---|
| Sep 20, 2026 | 10:47 PM CDT | Severe thunderstorm warning | LSX | text |
| Sep 9, 2026 | 11:37 PM CDT | Severe thunderstorm warning | LSX | text |
| Aug 16, 2026 | 9:17 PM CDT | Severe thunderstorm warning | LSX | text |
| Jul 10, 2026 | 9:58 PM CDT | Flash flood warning | LSX | text |
| Jul 10, 2026 | 9:30 PM CDT | Flash flood warning | LSX | text |
| Jul 4, 2026 | 4:42 PM CDT | Severe thunderstorm warning | LSX | text |
| May 18, 2026 | 5:06 PM CDT | Flash flood warning | LSX | text |
| Apr 27, 2026 | 7:56 PM CDT | Severe thunderstorm warning | LSX | text |
| Apr 27, 2026 | 7:24 PM CDT | Severe thunderstorm warning | LSX | text |
| Apr 27, 2026 | 7:12 PM CDT | Severe thunderstorm warning | LSX | text |
| Apr 15, 2026 | 10:15 PM CDT | Severe thunderstorm warning | LSX | text |
| Mar 15, 2026 | 5:34 PM CDT | Tornado warning | LSX | text |
A warning counts here if the Weather Service listed Monroe County in it, even if the warned area covered only part of the county.
Nearby
- St. Clair County, IL
- Jefferson County, MO
- Randolph County, IL
- St. Louis city, MO
- Ste. Genevieve County, MO
- St. Louis County, MO
- St. Francois County, MO
- Madison 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.