Jo Daviess County weather alerts
There are no active weather alerts for Jo Daviess County, IL right now.
Since 2016 the National Weather Service has issued about 897 alerts that included Jo Daviess County, roughly 90 a year. The most common is the severe thunderstorm warning (167 from 2016 to 2025). The last tornado warning was issued on July 3, 2026. 17 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 Jo Daviess County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Stephenson County, Dubuque County, Grant County, Lafayette County.
Jo Daviess County alert history
Alert events that included Jo Daviess County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 167 | 24 | August 21, 2026 |
| Dense Fog Advisory | 104 | 5 | August 13, 2026 |
| Winter Weather Advisory | 95 | 4 | March 16, 2026 |
| Wind Advisory | 63 | 3 | March 13, 2026 |
| Severe Thunderstorm Watch | 59 | 11 | August 21, 2026 |
| Cold Weather Advisory | 44 | 3 | January 26, 2026 |
| Flood Watch | 42 | 5 | September 19, 2026 |
| Flood Warning | 35 | 0 | June 29, 2024 |
| Flash Flood Warning | 34 | 9 | September 20, 2026 |
| Heat Advisory | 31 | 3 | August 31, 2026 |
| Frost Advisory | 30 | 3 | May 11, 2026 |
| Freeze Warning | 29 | 2 | October 17, 2026 |
| Winter Storm Warning | 29 | 0 | November 29, 2025 |
| Winter Storm Watch | 25 | 1 | March 16, 2026 |
| Tornado Watch | 24 | 6 | June 11, 2026 |
| Tornado Warning | 18 | 8 | July 3, 2026 |
| Red Flag Warning | 12 | 2 | March 28, 2026 |
| Freeze Watch | 10 | 1 | October 17, 2026 |
| Extreme Heat Warning | 8 | 2 | July 26, 2026 |
| High Wind Warning | 8 | 2 | March 15, 2026 |
| Extreme Cold Warning | 7 | 1 | January 23, 2026 |
| Extreme Heat Watch | 6 | 2 | July 27, 2026 |
| High Wind Watch | 4 | 0 | December 15, 2021 |
| Extreme Cold Watch | 4 | 1 | January 23, 2026 |
| Snow Squall Warning | 3 | 0 | February 19, 2022 |
| Fire Weather Watch | 3 | 1 | February 18, 2026 |
| Flood Advisory | 1 | 0 | January 22, 2018 |
| Ice Storm Warning | 1 | 0 | February 22, 2023 |
| Blizzard Warning | 1 | 1 | March 16, 2026 |
Tornado history in Jo Daviess County
17 tornadoes have been recorded in Jo Daviess County since 1950. That ranks 80 of 102 counties in Illinois. The most recent was on July 15, 2024 (rated EF2).
Strongest tornadoes in Jo Daviess County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 15, 2024 | EF2 | Jo Daviess County | 15.4 mi | 150 yd | 0 | 0 |
| June 11, 1967 | F2 | Jo Daviess County | 4.3 mi | 500 yd | 0 | 0 |
| July 15, 2024 | EF1 | Jo Daviess County | 29.8 mi | 100 yd | 0 | 0 |
| July 15, 2024 | EF1 | Jo Daviess County | 8.1 mi | 50 yd | 0 | 0 |
| May 16, 1956 | F1 | Jo Daviess County | 3.3 mi | 80 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 15, 2024 | EF2 | Jo Daviess County | 15.4 mi | 150 yd | 0 | 0 |
| July 15, 2024 | EF1 | Jo Daviess County | 8.1 mi | 50 yd | 0 | 0 |
| July 15, 2024 | EF1 | Jo Daviess County | 29.8 mi | 100 yd | 0 | 0 |
| May 23, 2020 | ? | Jo Daviess County | 0.5 mi | 20 yd | 0 | 0 |
| August 16, 2017 | EF1 | Jo Daviess County | 0.5 mi | 60 yd | 0 | 0 |
About Jo Daviess County
- Population: 21,528 (2024 estimate)
- State: Illinois
- NOAA Weather Radio SAME code: 017085 (how to use it)