Fond du Lac, Wisconsin Hail Report and Map: August 18, 2026
Was there hail in Fond du Lac, WI on August 18, 2026? Radar estimated hail up to 0.91 inch inside the town limits of Fond du Lac on August 18, 2026 (Eastern time). Radar estimates of at least 0.5 inch covered 52% of the town. Across the report area, the maximum radar estimate was 2.09 inches. The strongest part of the swath was about 53 miles northwest of Fond du Lac, WI.
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Hail estimates at a glance
| Storm date (Eastern time) | August 18, 2026 (Tuesday) |
|---|---|
| Maximum radar estimate across the area | 2.09 inches; strongest part of the swath about 53 miles northwest of Fond du Lac, WI |
| Maximum radar estimate inside Fond du Lac | 0.91 inch |
| Share of Fond du Lac with radar estimates of at least 0.5 inch | 52% |
| County coverage includes (0.5 inch or larger) | Waushara County (170 sq mi), Fond du Lac County (108 sq mi), Green Lake County (30 sq mi), Adams County (28 sq mi), Marquette County (3 sq mi) and Winnebago County (1 sq mi) |
| Area with radar estimates of 0.5 inch or larger | about 336 square miles |
| Area with radar estimates of 1 inch or larger | about 56 square miles |
| Source | NOAA MRMS radar hail estimates (MESH) |
Which towns had hail on August 18, 2026?
Radar estimated hail of at least 0.5 inch inside these town limits, using U.S. Census boundaries. Each percentage is the share of town area with those estimates.
| Town | County | Maximum radar estimate inside town limits | Town area with estimates of at least 0.5 inch |
|---|---|---|---|
| Wautoma, WI | Waushara County | 1.38 inches | 100% |
| Fond du Lac, WI | Fond du Lac County | 0.91 inch | 52% |
| Hancock, WI | 0.91 inch | 100% |
How big was the hail in Fond du Lac?
Radar estimated hail up to 0.91 inch inside the town limits of Fond du Lac. Among the listed towns, the highest estimate was 1.38 inches inside the limits of Wautoma. A town's maximum isn't an estimate for every home. Check the swath for estimates around an address.
Data source and limits
We use NOAA's MRMS radar product MESH (Maximum Estimated Size of Hail) for hail-size estimates. Each town's figure is the maximum inside its Census town limits. The percentage is the town area with estimates of at least 0.5 inch. A town's maximum isn't an estimate for every home. Each storm date covers one calendar day in Eastern time. A late-evening storm west of the Eastern time zone can appear under two dates. Radar estimates don't confirm hail on the ground or roof damage. Hail of 0.5 to 0.75 inch can damage roofs, especially older roofs. An estimate below 1 inch doesn't rule out damage. Read how we calculate sizes and times.