Clark County weather alerts
There are no active weather alerts for Clark County, IL right now.
Since 2016 the National Weather Service has issued about 752 alerts that included Clark County, roughly 75 a year. The most common is the severe thunderstorm warning (137 from 2016 to 2025). The last tornado warning was issued on June 21, 2026. 13 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 Clark County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Jasper County, Cumberland County, Edgar County, Sullivan County.
Clark County alert history
Alert events that included Clark County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 137 | 35 | November 11, 2026 |
| Dense Fog Advisory | 105 | 8 | August 7, 2026 |
| Flood Warning | 81 | 5 | August 14, 2026 |
| Wind Advisory | 62 | 5 | June 17, 2026 |
| Severe Thunderstorm Watch | 58 | 9 | July 27, 2026 |
| Winter Weather Advisory | 42 | 0 | December 13, 2025 |
| Flood Watch | 36 | 7 | August 13, 2026 |
| Tornado Watch | 33 | 9 | June 21, 2026 |
| Heat Advisory | 31 | 7 | August 31, 2026 |
| Freeze Warning | 30 | 0 | October 24, 2025 |
| Frost Advisory | 23 | 3 | October 18, 2026 |
| Flash Flood Warning | 22 | 8 | August 14, 2026 |
| Cold Weather Advisory | 17 | 5 | January 28, 2026 |
| Freeze Watch | 13 | 0 | October 24, 2025 |
| Flood Advisory | 11 | 1 | July 5, 2026 |
| Tornado Warning | 11 | 14 | June 21, 2026 |
| Winter Storm Watch | 9 | 1 | January 24, 2026 |
| Winter Storm Warning | 7 | 1 | January 24, 2026 |
| Extreme Heat Warning | 6 | 3 | September 2, 2026 |
| Extreme Heat Watch | 4 | 0 | July 23, 2025 |
| High Wind Warning | 4 | 0 | September 27, 2024 |
| High Wind Watch | 3 | 0 | February 9, 2023 |
| Red Flag Warning | 3 | 0 | February 28, 2025 |
| Extreme Cold Warning | 2 | 1 | January 26, 2026 |
| Extreme Cold Watch | 1 | 0 | January 30, 2019 |
| Fire Weather Watch | 1 | 0 | October 17, 2020 |
Tornado history in Clark County
13 tornadoes have been recorded in Clark County since 1950. That ranks 92 of 102 counties in Illinois. The most recent was on May 16, 2025 (rated EF1).
Strongest tornadoes in Clark County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 2, 2025 | EF2 | Clark County | 48.9 mi | 1,200 yd | 0 | 0 |
| May 16, 2025 | EF1 | Clark County | 10.7 mi | 100 yd | 0 | 0 |
| April 2, 2025 | EF1 | Clark County | 8.1 mi | 200 yd | 0 | 0 |
| March 20, 1976 | F1 | Crawford County | 3.5 mi | 17 yd | 0 | 0 |
| June 16, 1970 | F1 | Clark County | 2 mi | 100 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 16, 2025 | EF1 | Clark County | 10.7 mi | 100 yd | 0 | 0 |
| April 2, 2025 | EF1 | Clark County | 8.1 mi | 200 yd | 0 | 0 |
| April 2, 2025 | EF2 | Clark County | 48.9 mi | 1,200 yd | 0 | 0 |
| September 9, 2016 | EF0 | Clark County | 0.1 mi | 10 yd | 0 | 0 |
| May 25, 2007 | EF0 | Clark County | 2.5 mi | 30 yd | 0 | 0 |
About Clark County
- Population: 15,076 (2024 estimate)
- State: Illinois
- NOAA Weather Radio SAME code: 017023 (how to use it)