Knox County weather alerts
There are no active weather alerts for Knox County, IN right now.
Since 2016 the National Weather Service has issued about 1,193 alerts that included Knox County, roughly 119 a year. The most common is the flood warning (590 from 2016 to 2025). The last tornado warning was issued on October 15, 2026. 19 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 Knox County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Greene County, Lawrence County, Wabash County, Sullivan County.
Knox County alert history
Alert events that included Knox County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Flood Warning | 590 | 65 | August 24, 2026 |
| Severe Thunderstorm Warning | 121 | 43 | October 15, 2026 |
| Severe Thunderstorm Watch | 52 | 11 | November 11, 2026 |
| Wind Advisory | 52 | 5 | April 2, 2026 |
| Flood Advisory | 51 | 23 | October 15, 2026 |
| Dense Fog Advisory | 41 | 4 | May 28, 2026 |
| Flood Watch | 40 | 9 | July 10, 2026 |
| Freeze Warning | 36 | 0 | October 24, 2025 |
| Tornado Watch | 35 | 5 | June 21, 2026 |
| Winter Weather Advisory | 32 | 1 | March 2, 2026 |
| Heat Advisory | 30 | 7 | September 1, 2026 |
| Flash Flood Warning | 24 | 6 | June 27, 2026 |
| Frost Advisory | 21 | 4 | October 19, 2026 |
| Freeze Watch | 14 | 0 | October 24, 2025 |
| Tornado Warning | 12 | 9 | October 15, 2026 |
| Cold Weather Advisory | 9 | 5 | January 31, 2026 |
| Winter Storm Warning | 8 | 1 | January 24, 2026 |
| Winter Storm Watch | 7 | 1 | January 24, 2026 |
| Red Flag Warning | 6 | 0 | April 20, 2023 |
| High Wind Warning | 3 | 1 | March 15, 2026 |
| Extreme Heat Warning | 3 | 1 | June 30, 2026 |
| Extreme Heat Watch | 2 | 0 | August 23, 2023 |
| High Wind Watch | 2 | 0 | January 12, 2024 |
| Extreme Cold Watch | 1 | 0 | January 30, 2019 |
| Fire Weather Watch | 1 | 0 | October 14, 2022 |
| Extreme Cold Warning | 0 | 2 | January 27, 2026 |
Tornado history in Knox County
19 tornadoes have been recorded in Knox County since 1950, injuring 4 people. That ranks 53 of 92 counties in Indiana. The most recent was on May 26, 2024 (rated EF2).
Strongest tornadoes in Knox County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| February 10, 1959 | F3 | Knox County | 3.3 mi | 100 yd | 0 | 0 |
| April 30, 1962 | F2 | Knox County | 26.2 mi | 10 yd | 0 | 0 |
| February 25, 1956 | F2 | Knox County | 21 mi | 900 yd | 0 | 1 |
| September 20, 2002 | F2 | Pike County | 13.5 mi | 150 yd | 0 | 2 |
| May 26, 2024 | EF2 | Knox County | 12.1 mi | 50 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 26, 2024 | EF2 | Knox County | 12.1 mi | 50 yd | 0 | 0 |
| February 7, 2019 | EF0 | Knox County | 3 mi | 300 yd | 0 | 0 |
| November 17, 2013 | EF2 | Knox County | 8.8 mi | 100 yd | 0 | 1 |
| April 19, 2011 | EF1 | Knox County | 10.9 mi | 75 yd | 0 | 0 |
| September 20, 2002 | F2 | Pike County | 13.5 mi | 150 yd | 0 | 2 |
About Knox County
- Population: 35,872 (2024 estimate)
- State: Indiana
- NOAA Weather Radio SAME code: 018083 (how to use it)