Greene County weather alerts
There are no active weather alerts for Greene County, IL right now.
Since 2016 the National Weather Service has issued about 680 alerts that included Greene County, roughly 68 a year. The most common is the severe thunderstorm warning (119 from 2016 to 2025). The last tornado warning was issued on April 27, 2026. 21 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
No warnings, watches or advisories include Greene County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Scott County, Macoupin County, Pike County, Jersey County.
Greene County alert history
Alert events that included Greene County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 119 | 20 | July 11, 2026 |
| Severe Thunderstorm Watch | 71 | 2 | June 11, 2026 |
| Dense Fog Advisory | 65 | 4 | May 9, 2026 |
| Winter Weather Advisory | 59 | 1 | March 2, 2026 |
| Flood Warning | 52 | 2 | June 16, 2026 |
| Wind Advisory | 51 | 4 | June 17, 2026 |
| Flood Watch | 34 | 6 | August 6, 2026 |
| Heat Advisory | 31 | 6 | September 15, 2026 |
| Tornado Watch | 31 | 5 | June 17, 2026 |
| Freeze Warning | 25 | 2 | November 7, 2026 |
| Cold Weather Advisory | 20 | 3 | January 26, 2026 |
| Flash Flood Warning | 16 | 1 | June 1, 2026 |
| Flood Advisory | 16 | 0 | June 27, 2025 |
| Frost Advisory | 16 | 2 | October 18, 2026 |
| Red Flag Warning | 11 | 1 | February 27, 2026 |
| Tornado Warning | 10 | 1 | April 27, 2026 |
| Winter Storm Warning | 10 | 1 | January 24, 2026 |
| Freeze Watch | 9 | 0 | November 2, 2025 |
| Winter Storm Watch | 9 | 1 | January 24, 2026 |
| Extreme Heat Warning | 7 | 3 | September 3, 2026 |
| Extreme Heat Watch | 5 | 1 | July 26, 2026 |
| Extreme Cold Warning | 4 | 1 | January 26, 2026 |
| Fire Weather Watch | 3 | 0 | October 17, 2020 |
| High Wind Warning | 2 | 0 | March 5, 2025 |
| Extreme Cold Watch | 2 | 0 | December 22, 2022 |
| Ice Storm Warning | 1 | 0 | January 13, 2017 |
| High Wind Watch | 1 | 0 | March 14, 2019 |
Tornado history in Greene County
21 tornadoes have been recorded in Greene County since 1950, injuring 38 people. That ranks 68 of 102 counties in Illinois. The most recent was on April 18, 2024 (rated unknown).
Strongest tornadoes in Greene County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 1, 1983 | F3 | Greene County | 4 mi | 77 yd | 0 | 15 |
| March 12, 2006 | F2 | Calhoun County | 67 mi | 880 yd | 0 | 20 |
| October 11, 2021 | EF2 | Greene County | 5.8 mi | 75 yd | 0 | 0 |
| May 20, 1975 | F2 | Greene County | 0.1 mi | 10 yd | 0 | 0 |
| November 15, 1988 | F2 | Greene County | 0.1 mi | 50 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 18, 2024 | ? | Greene County | 4.3 mi | 10 yd | 0 | 0 |
| October 11, 2021 | EF2 | Greene County | 5.8 mi | 75 yd | 0 | 0 |
| June 26, 2021 | ? | Greene County | 0.2 mi | 25 yd | 0 | 0 |
| May 15, 2018 | EF0 | Greene County | 0.9 mi | 50 yd | 0 | 0 |
| May 29, 2015 | EF1 | Greene County | 4.7 mi | 200 yd | 0 | 0 |
About Greene County
- Population: 11,417 (2024 estimate)
- State: Illinois
- NOAA Weather Radio SAME code: 017061 (how to use it)