Calhoun County weather alerts
There are no active weather alerts for Calhoun County, IL right now.
Since 2016 the National Weather Service has issued about 829 alerts that included Calhoun County, roughly 83 a year. The most common is the severe thunderstorm warning (181 from 2016 to 2025). The last tornado warning was issued on April 27, 2026. 7 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 Calhoun County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Pike County, Pike County, Jersey County, Greene County.
Calhoun County alert history
Alert events that included Calhoun County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 181 | 23 | July 11, 2026 |
| Flood Warning | 113 | 10 | October 4, 2026 |
| Severe Thunderstorm Watch | 70 | 4 | June 11, 2026 |
| Winter Weather Advisory | 64 | 1 | March 2, 2026 |
| Dense Fog Advisory | 62 | 3 | May 9, 2026 |
| Wind Advisory | 46 | 4 | June 17, 2026 |
| Heat Advisory | 36 | 8 | September 15, 2026 |
| Flood Watch | 35 | 7 | August 6, 2026 |
| Tornado Watch | 33 | 7 | June 17, 2026 |
| Freeze Warning | 27 | 2 | November 7, 2026 |
| Flood Advisory | 23 | 2 | May 16, 2026 |
| Flash Flood Warning | 22 | 2 | June 8, 2026 |
| Tornado Warning | 18 | 6 | April 27, 2026 |
| Frost Advisory | 16 | 2 | October 18, 2026 |
| Red Flag Warning | 15 | 1 | February 27, 2026 |
| Cold Weather Advisory | 15 | 3 | January 26, 2026 |
| Winter Storm Watch | 10 | 1 | January 24, 2026 |
| Winter Storm Warning | 10 | 1 | January 24, 2026 |
| Freeze Watch | 9 | 0 | November 2, 2025 |
| Extreme Heat Warning | 6 | 3 | September 3, 2026 |
| Extreme Heat Watch | 5 | 1 | July 26, 2026 |
| Extreme Cold Warning | 4 | 1 | January 26, 2026 |
| Fire Weather Watch | 3 | 0 | October 17, 2020 |
| High Wind Warning | 2 | 0 | March 5, 2025 |
| Extreme Cold Watch | 2 | 0 | December 22, 2022 |
| Ice Storm Warning | 1 | 0 | January 13, 2017 |
| High Wind Watch | 1 | 0 | March 14, 2019 |
Tornado history in Calhoun County
7 tornadoes have been recorded in Calhoun County since 1950, injuring 24 people. That ranks 100 of 102 counties in Illinois. The most recent was on December 31, 2010 (rated EF0).
Strongest tornadoes in Calhoun County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| March 12, 2006 | F2 | Calhoun County | 67 mi | 880 yd | 0 | 20 |
| October 10, 1969 | F2 | Calhoun County | 0.3 mi | 100 yd | 0 | 4 |
| February 11, 1999 | F1 | Calhoun County | 3 mi | 50 yd | 0 | 0 |
| June 14, 1998 | F1 | Calhoun County | 1.2 mi | 80 yd | 0 | 0 |
| May 31, 1958 | F0 | Calhoun County | 8.8 mi | 10 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| December 31, 2010 | EF0 | Calhoun County | 3.6 mi | 50 yd | 0 | 0 |
| March 12, 2006 | F2 | Calhoun County | 67 mi | 880 yd | 0 | 20 |
| May 7, 2002 | F0 | Calhoun County | 0.1 mi | 25 yd | 0 | 0 |
| February 11, 1999 | F1 | Calhoun County | 3 mi | 50 yd | 0 | 0 |
| June 14, 1998 | F1 | Calhoun County | 1.2 mi | 80 yd | 0 | 0 |
About Calhoun County
- Population: 4,224 (2024 estimate)
- State: Illinois
- NOAA Weather Radio SAME code: 017013 (how to use it)