Kendall County weather alerts
There are no active weather alerts for Kendall County, IL right now.
Since 2016 the National Weather Service has issued about 912 alerts that included Kendall County, roughly 91 a year. The most common is the flood advisory (127 from 2016 to 2025). The last tornado warning was issued on August 11, 2026. 32 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 Kendall County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring DeKalb County, LaSalle County, Grundy County, Kane County.
Kendall County alert history
Alert events that included Kendall County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Flood Advisory | 127 | 24 | October 2, 2026 |
| Severe Thunderstorm Warning | 122 | 28 | August 12, 2026 |
| Dense Fog Advisory | 100 | 8 | September 10, 2026 |
| Winter Weather Advisory | 89 | 2 | March 16, 2026 |
| Severe Thunderstorm Watch | 70 | 14 | August 21, 2026 |
| Wind Advisory | 66 | 5 | April 27, 2026 |
| Flood Warning | 51 | 7 | August 1, 2026 |
| Flood Watch | 50 | 16 | October 1, 2026 |
| Cold Weather Advisory | 31 | 3 | January 26, 2026 |
| Tornado Watch | 25 | 4 | June 11, 2026 |
| Heat Advisory | 21 | 5 | September 4, 2026 |
| Freeze Warning | 21 | 1 | April 20, 2026 |
| Frost Advisory | 18 | 4 | October 17, 2026 |
| Winter Storm Watch | 17 | 0 | November 29, 2025 |
| Flash Flood Warning | 16 | 7 | August 12, 2026 |
| Winter Storm Warning | 13 | 0 | November 29, 2025 |
| Red Flag Warning | 11 | 1 | February 18, 2026 |
| Tornado Warning | 10 | 5 | August 11, 2026 |
| High Wind Warning | 9 | 2 | June 11, 2026 |
| Freeze Watch | 8 | 1 | April 20, 2026 |
| Extreme Heat Watch | 6 | 0 | July 23, 2025 |
| Extreme Heat Warning | 6 | 2 | July 27, 2026 |
| Fire Weather Watch | 6 | 1 | February 18, 2026 |
| High Wind Watch | 5 | 1 | March 13, 2026 |
| Extreme Cold Warning | 5 | 1 | January 23, 2026 |
| Ice Storm Warning | 2 | 0 | February 12, 2019 |
| Extreme Cold Watch | 2 | 1 | January 23, 2026 |
| Snow Squall Warning | 2 | 0 | February 19, 2022 |
| Dust Storm Warning | 2 | 0 | May 16, 2025 |
| Blizzard Warning | 1 | 0 | November 26, 2018 |
Tornado history in Kendall County
32 tornadoes have been recorded in Kendall County since 1950, killing 30 people and injuring 361. That ranks 47 of 102 counties in Illinois. The most recent was on March 14, 2025 (rated EF0).
Strongest tornadoes in Kendall County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| August 28, 1990 | F5 | Kendall County | 16.4 mi | 600 yd | 29 | 350 |
| April 27, 1984 | F3 | Kendall County | 9 mi | 200 yd | 1 | 5 |
| March 12, 1976 | F3 | Kendall County | 22.6 mi | 30 yd | 0 | 3 |
| August 15, 1958 | F2 | Lee County | 74.5 mi | 100 yd | 0 | 0 |
| May 27, 1954 | F2 | Kendall County | 7.9 mi | 200 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| March 14, 2025 | EF0 | Kendall County | 3.6 mi | 125 yd | 0 | 0 |
| July 15, 2024 | EF0 | Kendall County | 17 mi | 300 yd | 0 | 0 |
| July 15, 2024 | EF1 | Kendall County | 19.5 mi | 250 yd | 0 | 2 |
| July 15, 2024 | EF1 | Kendall County | 19.2 mi | 200 yd | 0 | 0 |
| July 28, 2023 | EF1 | Kendall County | 7.6 mi | 225 yd | 0 | 0 |
About Kendall County
- Population: 143,171 (2024 estimate)
- State: Illinois
- NOAA Weather Radio SAME code: 017093 (how to use it)