Illinois alerts

Jersey County, Illinois weather alerts

No watches, warnings or advisories are in force for Jersey County.

Checked Sun, Sep 20, 2026, 5:22 PM CDT. Times are Central Daylight Time.

Jersey County forecastLive radar here

Warnings on the map

Every watch, warning and advisory the National Weather Service has in force over Jersey County, Illinois. Open it for the live map, where it pans and zooms.

Every watch, warning and advisory the National Weather Service has in force over Jersey County, Illinois 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 Jersey 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 Jersey County

In the past year the National Weather Service issued 91 alerts for Jersey County, including 20 severe thunderstorm warnings, 5 tornado warnings, 3 extreme heat warnings and 3 flash flood warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning20Jul 10, 2026
Tornado Warning5Apr 27, 2026
Extreme Heat Warning3Sep 3, 2026
Flash Flood Warning3Jun 8, 2026
Flood Warning3Jun 16, 2026
Freeze Warning2Mar 28, 2026
Winter Storm Warning2Jan 24, 2026
Extreme Cold Warning1Jan 26, 2026
Red Flag Warning1Feb 27, 2026
Flood Watch7Aug 5, 2026
Tornado Watch6Jun 17, 2026
Severe Thunderstorm Watch4Jun 11, 2026
Winter Storm Watch2Jan 24, 2026
Extreme Heat Watch1Jul 26, 2026
Freeze Watch1Nov 2, 2025
Dense Fog Advisory8May 9, 2026
Heat Advisory7Sep 16, 2026
Wind Advisory7Jun 17, 2026
Cold Weather Advisory4Jan 26, 2026
Winter Weather Advisory3Mar 1, 2026
Frost Advisory1Oct 23, 2025

Warnings issued

  1. Extreme Heat Warning
  2. Extreme Heat Warning
  3. Severe Thunderstorm Warning
  4. Severe Thunderstorm Warning
  5. Extreme Heat Warning
  6. Severe Thunderstorm Warning
  7. Flood Warning
  8. Flash Flood Warning
  9. Flash Flood Warning
  10. Severe Thunderstorm Warning
  11. Severe Thunderstorm Warning
  12. Severe Thunderstorm Warning
  13. Tornado Warning
  14. Severe Thunderstorm Warning
  15. Tornado Warning
  16. Severe Thunderstorm Warning
  17. Severe Thunderstorm Warning
  18. Severe Thunderstorm Warning
  19. Severe Thunderstorm Warning
  20. Flash Flood Warning
  21. Severe Thunderstorm Warning
  22. Tornado Warning
  23. Severe Thunderstorm Warning
  24. Flood Warning
  25. Flood Warning
  26. Tornado Warning
  27. Severe Thunderstorm Warning
  28. Severe Thunderstorm Warning
  29. Severe Thunderstorm Warning
  30. Severe Thunderstorm Warning
  31. Freeze Warning
  32. Tornado Warning
  33. Severe Thunderstorm Warning
  34. Severe Thunderstorm Warning
  35. Red Flag Warning
  36. Extreme Cold Warning
  37. Winter Storm Warning
  38. Severe Thunderstorm Warning
  39. Winter Storm Warning
  40. Freeze Warning
Every alert, most recent first
  1. Heat Advisory
  2. Extreme Heat Warning
  3. Heat Advisory
  4. Heat Advisory
  5. Flood Watch
  6. Heat Advisory
  7. Extreme Heat Watch
  8. Extreme Heat Warning
  9. Severe Thunderstorm Warning
  10. Severe Thunderstorm Warning
  11. Heat Advisory
  12. Extreme Heat Warning
  13. Heat Advisory
  14. Flood Watch
  15. Severe Thunderstorm Warning
  16. Flood Watch
  17. Tornado Watch
  18. Wind Advisory
  19. Tornado Watch
  20. Flood Warning
  21. Severe Thunderstorm Watch
  22. Heat Advisory
  23. Flash Flood Warning
  24. Flood Watch
  25. Flash Flood Warning
  26. Severe Thunderstorm Watch
  27. Flood Watch
  28. Severe Thunderstorm Warning
  29. Dense Fog Advisory
  30. Severe Thunderstorm Warning
  31. Severe Thunderstorm Warning
  32. Tornado Warning
  33. Severe Thunderstorm Warning
  34. Tornado Warning
  35. Severe Thunderstorm Warning
  36. Severe Thunderstorm Warning
  37. Severe Thunderstorm Warning
  38. Severe Thunderstorm Warning
  39. Flash Flood Warning
  40. Severe Thunderstorm Warning

The 40 most recent of 91.

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 Jersey 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.