Rock Island County weather alerts
There are no active weather alerts for Rock Island County, IL right now.
Since 2016 the National Weather Service has issued about 1,138 alerts that included Rock Island County, roughly 114 a year. The most common is the severe thunderstorm warning (238 from 2016 to 2025). The last tornado warning was issued on August 11, 2026. 34 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 Rock Island County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Henry County, Muscatine County, Mercer County, Scott County.
Rock Island County alert history
Alert events that included Rock Island County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 238 | 38 | November 11, 2026 |
| Flood Warning | 155 | 14 | October 2, 2026 |
| Dense Fog Advisory | 104 | 6 | September 11, 2026 |
| Winter Weather Advisory | 96 | 1 | March 16, 2026 |
| Wind Advisory | 74 | 5 | April 2, 2026 |
| Severe Thunderstorm Watch | 66 | 13 | August 21, 2026 |
| Flood Watch | 51 | 9 | September 30, 2026 |
| Heat Advisory | 50 | 3 | August 31, 2026 |
| Cold Weather Advisory | 39 | 3 | January 26, 2026 |
| Tornado Warning | 36 | 5 | August 11, 2026 |
| Tornado Watch | 31 | 8 | June 11, 2026 |
| Flash Flood Warning | 29 | 8 | September 20, 2026 |
| Winter Storm Warning | 27 | 0 | December 18, 2025 |
| Freeze Warning | 23 | 2 | October 17, 2026 |
| Winter Storm Watch | 22 | 1 | March 16, 2026 |
| Frost Advisory | 20 | 2 | May 7, 2026 |
| Red Flag Warning | 14 | 3 | March 28, 2026 |
| Extreme Heat Warning | 13 | 3 | September 2, 2026 |
| Freeze Watch | 9 | 0 | October 16, 2024 |
| Extreme Heat Watch | 8 | 2 | July 27, 2026 |
| High Wind Warning | 8 | 2 | March 15, 2026 |
| Extreme Cold Warning | 7 | 1 | January 23, 2026 |
| High Wind Watch | 4 | 0 | December 15, 2021 |
| Snow Squall Warning | 4 | 1 | January 22, 2026 |
| Extreme Cold Watch | 4 | 1 | January 23, 2026 |
| Blizzard Warning | 2 | 1 | March 16, 2026 |
| Ice Storm Warning | 2 | 0 | December 14, 2024 |
| Fire Weather Watch | 2 | 2 | February 27, 2026 |
Tornado history in Rock Island County
34 tornadoes have been recorded in Rock Island County since 1950, injuring 18 people. That ranks 43 of 102 counties in Illinois. The most recent was on June 3, 2025 (rated EF1).
Strongest tornadoes in Rock Island County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 14, 1974 | F3 | Rock Island County | 48.6 mi | 440 yd | 0 | 2 |
| August 15, 1978 | F3 | Mercer County | 6.4 mi | 77 yd | 0 | 0 |
| April 21, 1973 | F2 | Mercer County | 30.2 mi | 10 yd | 0 | 2 |
| May 16, 1974 | F2 | Rock Island County | 9.2 mi | 100 yd | 0 | 0 |
| August 26, 1959 | F2 | Rock Island County | 5.6 mi | 50 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 3, 2025 | EF1 | Rock Island County | 12.4 mi | 300 yd | 0 | 0 |
| June 3, 2025 | EF1 | Mercer County | 3.8 mi | 100 yd | 0 | 0 |
| June 3, 2025 | EF1 | Rock Island County | 14.4 mi | 300 yd | 0 | 0 |
| June 3, 2025 | EF0 | Rock Island County | 1.2 mi | 25 yd | 0 | 0 |
| April 20, 2025 | EF0 | Rock Island County | 0.7 mi | 50 yd | 0 | 0 |
About Rock Island County
- Population: 142,731 (2024 estimate)
- State: Illinois
- NOAA Weather Radio SAME code: 017161 (how to use it)