Fond du Lac County weather alerts
There are no active weather alerts for Fond du Lac County, WI right now.
Since 2016 the National Weather Service has issued about 682 alerts that included Fond du Lac County, roughly 68 a year. The most common is the severe thunderstorm warning (117 from 2016 to 2025). The last tornado warning was issued on July 27, 2026. 58 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 Fond du Lac County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Green Lake County, Dodge County, Calumet County, Washington County.
Fond du Lac County alert history
Alert events that included Fond du Lac County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 117 | 41 | September 4, 2026 |
| Winter Weather Advisory | 104 | 7 | April 2, 2026 |
| Dense Fog Advisory | 98 | 6 | October 23, 2026 |
| Wind Advisory | 49 | 3 | May 12, 2026 |
| Severe Thunderstorm Watch | 42 | 10 | August 18, 2026 |
| Cold Weather Advisory | 42 | 3 | January 26, 2026 |
| Flood Advisory | 33 | 8 | September 4, 2026 |
| Frost Advisory | 28 | 6 | May 11, 2026 |
| Flood Watch | 22 | 5 | September 19, 2026 |
| Winter Storm Warning | 20 | 1 | March 15, 2026 |
| Freeze Warning | 19 | 2 | October 17, 2026 |
| Winter Storm Watch | 19 | 1 | March 15, 2026 |
| Tornado Warning | 18 | 6 | July 27, 2026 |
| Heat Advisory | 15 | 3 | July 27, 2026 |
| Flood Warning | 11 | 1 | April 16, 2026 |
| Tornado Watch | 10 | 4 | April 17, 2026 |
| Flash Flood Warning | 8 | 0 | July 16, 2025 |
| High Wind Warning | 5 | 1 | March 13, 2026 |
| Extreme Heat Warning | 3 | 1 | June 29, 2026 |
| Freeze Watch | 3 | 1 | October 17, 2026 |
| Fire Weather Watch | 3 | 0 | April 13, 2023 |
| Snow Squall Warning | 3 | 0 | February 19, 2022 |
| Extreme Heat Watch | 3 | 1 | June 29, 2026 |
| Extreme Cold Warning | 2 | 1 | January 23, 2026 |
| Red Flag Warning | 2 | 0 | April 13, 2023 |
| Ice Storm Warning | 1 | 0 | February 19, 2018 |
| High Wind Watch | 1 | 0 | December 16, 2021 |
| Blizzard Warning | 1 | 1 | March 16, 2026 |
| Extreme Cold Watch | 0 | 2 | January 23, 2026 |
Tornado history in Fond du Lac County
58 tornadoes have been recorded in Fond du Lac County since 1950, killing 4 people and injuring 80. That ranks 5 of 72 counties in Wisconsin. The most recent was on August 28, 2018 (rated EF0).
Strongest tornadoes in Fond du Lac County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 18, 1996 | F5 | Fond du Lac County | 13.3 mi | 400 yd | 0 | 12 |
| April 21, 1974 | F4 | Fond du Lac County | 26 mi | 200 yd | 0 | 35 |
| April 21, 1974 | F3 | Dodge County | 58.6 mi | 200 yd | 2 | 18 |
| June 23, 2004 | F3 | Green Lake County | 7.6 mi | 300 yd | 1 | 1 |
| June 5, 1977 | F3 | Fond du Lac County | 69.5 mi | 400 yd | 0 | 8 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| August 28, 2018 | EF0 | Fond du Lac County | 0 mi | 80 yd | 0 | 0 |
| August 28, 2018 | EF1 | Fond du Lac County | 4 mi | 100 yd | 0 | 0 |
| August 28, 2018 | EF1 | Fond du Lac County | 4.5 mi | 90 yd | 0 | 0 |
| August 28, 2018 | EF1 | Fond du Lac County | 2.8 mi | 100 yd | 0 | 0 |
| August 28, 2018 | EF2 | Dodge County | 3.9 mi | 150 yd | 0 | 0 |
About Fond du Lac County
- Population: 104,269 (2024 estimate)
- State: Wisconsin
- NOAA Weather Radio SAME code: 055039 (how to use it)