Carroll County weather alerts
There are no active weather alerts for Carroll County, IL right now.
Since 2016 the National Weather Service has issued about 864 alerts that included Carroll County, roughly 86 a year. The most common is the severe thunderstorm warning (150 from 2016 to 2025). The last tornado warning was issued on April 24, 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 Carroll County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Ogle County, Jo Daviess County, Stephenson County, Jackson County.
Carroll County alert history
Alert events that included Carroll County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 150 | 24 | August 21, 2026 |
| Dense Fog Advisory | 99 | 6 | September 10, 2026 |
| Winter Weather Advisory | 98 | 3 | March 16, 2026 |
| Severe Thunderstorm Watch | 66 | 10 | August 21, 2026 |
| Wind Advisory | 65 | 3 | March 13, 2026 |
| Flood Watch | 41 | 8 | September 30, 2026 |
| Cold Weather Advisory | 41 | 3 | January 26, 2026 |
| Heat Advisory | 36 | 3 | August 31, 2026 |
| Frost Advisory | 29 | 2 | May 7, 2026 |
| Freeze Warning | 28 | 2 | October 17, 2026 |
| Winter Storm Warning | 28 | 0 | December 7, 2025 |
| Tornado Watch | 25 | 6 | June 11, 2026 |
| Tornado Warning | 25 | 4 | April 24, 2026 |
| Winter Storm Watch | 23 | 1 | March 16, 2026 |
| Flood Warning | 21 | 0 | June 29, 2024 |
| Flash Flood Warning | 21 | 1 | April 16, 2026 |
| Red Flag Warning | 12 | 1 | February 18, 2026 |
| Freeze Watch | 10 | 1 | October 17, 2026 |
| Extreme Heat Warning | 8 | 2 | July 26, 2026 |
| High Wind Warning | 8 | 2 | March 15, 2026 |
| Extreme Cold Warning | 7 | 1 | January 23, 2026 |
| Extreme Heat Watch | 6 | 2 | July 27, 2026 |
| High Wind Watch | 4 | 0 | December 15, 2021 |
| Extreme Cold Watch | 4 | 1 | January 23, 2026 |
| Fire Weather Watch | 3 | 1 | February 18, 2026 |
| Blizzard Warning | 2 | 1 | March 16, 2026 |
| Ice Storm Warning | 2 | 0 | February 12, 2019 |
| Snow Squall Warning | 2 | 1 | January 22, 2026 |
Tornado history in Carroll County
21 tornadoes have been recorded in Carroll County since 1950, injuring 13 people. That ranks 68 of 102 counties in Illinois. The most recent was on July 15, 2024 (rated EF1).
Strongest tornadoes in Carroll County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| January 24, 1967 | F3 | Carroll County | 7.4 mi | 77 yd | 0 | 12 |
| April 18, 1955 | F2 | Carroll County | 9 mi | 77 yd | 0 | 0 |
| June 12, 2013 | EF2 | Carroll County | 6.6 mi | 880 yd | 0 | 1 |
| September 26, 1959 | F2 | Carroll County | 3.3 mi | 40 yd | 0 | 0 |
| July 15, 2024 | EF1 | Jo Daviess County | 29.8 mi | 100 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 15, 2024 | EF1 | Jo Daviess County | 29.8 mi | 100 yd | 0 | 0 |
| March 31, 2023 | EF1 | Carroll County | 11 mi | 200 yd | 0 | 0 |
| March 31, 2023 | EF1 | Carroll County | 1 mi | 50 yd | 0 | 0 |
| May 23, 2020 | EF1 | Whiteside County | 12.3 mi | 30 yd | 0 | 0 |
| April 9, 2015 | EF1 | Whiteside County | 8.3 mi | 50 yd | 0 | 0 |
About Carroll County
- Population: 15,444 (2024 estimate)
- State: Illinois
- NOAA Weather Radio SAME code: 017015 (how to use it)