Clark County, Illinois weather alerts
No watches, warnings or advisories are in force for Clark County.
Checked Sun, Sep 20, 2026, 2:25 PM CDT. Times are Central Daylight Time.
Warnings on the map
Every watch, warning and advisory the National Weather Service has in force over Clark County, Illinois. Open it for the live map, where it pans and zooms.























Open the live map with warnings and watches
Map layer from NOAA National Weather Service. Boundaries from the Iowa Environmental Mesonet.
Alerts in force
Nothing is in force for Clark County right now. Its warnings come from the National Weather Service and appear here within a minute of being issued; every one of the past year is below.
The past year in Clark County
In the past year the National Weather Service issued 149 alerts for Clark County, including 39 severe thunderstorm warnings, 14 tornado warnings, 8 flash flood warnings and 5 flood warnings.
| Product | Issued | Most recent |
|---|---|---|
| Severe Thunderstorm Warning | 39 | Aug 16, 2026 |
| Tornado Warning | 14 | Jun 21, 2026 |
| Flash Flood Warning | 8 | Aug 14, 2026 |
| Flood Warning | 5 | Aug 14, 2026 |
| Extreme Heat Warning | 3 | Sep 2, 2026 |
| Extreme Cold Warning | 1 | Jan 26, 2026 |
| Freeze Warning | 1 | Oct 24, 2025 |
| Winter Storm Warning | 1 | Jan 24, 2026 |
| Tornado Watch | 10 | Jun 21, 2026 |
| Severe Thunderstorm Watch | 9 | Jul 27, 2026 |
| Flood Watch | 7 | Aug 14, 2026 |
| Winter Storm Watch | 2 | Jan 24, 2026 |
| Freeze Watch | 1 | Oct 24, 2025 |
| Dense Fog Advisory | 16 | Aug 7, 2026 |
| Wind Advisory | 8 | Jun 17, 2026 |
| Heat Advisory | 7 | Aug 31, 2026 |
| Cold Weather Advisory | 6 | Jan 27, 2026 |
| Winter Weather Advisory | 5 | Dec 13, 2025 |
| Frost Advisory | 3 | Apr 20, 2026 |
| Blowing Dust Advisory | 2 | Apr 12, 2026 |
| Flood Advisory | 1 | Jul 4, 2026 |
Warnings issued
- Extreme Heat Warning
- Severe Thunderstorm Warning
- Flood Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Extreme Heat Warning
- Flash Flood Warning
- Extreme Heat Warning
- Flash Flood Warning
- Flash Flood Warning
- Flash Flood Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Tornado Warning
- Tornado Warning
- Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Tornado Warning
- Tornado Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Tornado Warning
- Flash Flood Warning
- Tornado Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flood Warning
- Tornado Warning
- Severe Thunderstorm Warning
- Tornado Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Tornado Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Tornado Warning
- Tornado Warning
- Tornado Warning
And 12 earlier warnings.
Every alert, most recent first
- Extreme Heat Warning
- Heat Advisory
- Severe Thunderstorm Warning
- Flood Warning
- Flood Watch
- Flash Flood Warning
- Heat Advisory
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Heat Advisory
- Heat Advisory
- Dense Fog Advisory
- Severe Thunderstorm Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Watch
- Extreme Heat Warning
- Heat Advisory
- Flash Flood Warning
- Flood Advisory
- Heat Advisory
- Extreme Heat Warning
- Heat Advisory
- Dense Fog Advisory
- Flash Flood Warning
- Flash Flood Warning
- Flood Watch
- Flash Flood Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Tornado Warning
- Tornado Warning
- Tornado Watch
- Flood Watch
- Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Tornado Warning
The 40 most recent of 149.
From the Iowa Environmental Mesonet’s archive of NWS watches, warnings and advisories (VTEC), by the county’s own code and the forecast zones inside it. Each date links to the event at the IEM.
Nearby
The counties around Clark County, with what is in force in each.
What this means
- Warning
- The hazard is happening or about to. Act now: a tornado warning means take shelter, a flash flood warning means move to higher ground.
- Watch
- Conditions favor the hazard. Nothing is happening yet; have a plan and be ready to act if a warning follows.
- Advisory
- A hazard that is less serious than a warning but can still cause trouble, such as dense fog, heat or light ice.
- Statement
- Information about weather that does not yet meet a warning: a strong storm, a hydrologic update, or a special weather statement.
Severity (extreme, severe, moderate, minor) is the rating the issuing office gives each product. More on the difference: tornado watch vs. tornado warning. Alerts come from the National Weather Service; follow its instructions and your local officials.
Sources
Alerts from the National Weather Service's public feed, read afresh every minute, and matched to counties and zones by their UGC codes. Warnings from outside the United States come from each country's own meteorological service. Follow the issuing office's instructions and your local officials.