Saturday morning in much of Central and Northern Wisconsin will start on a frigid note, as the National Weather Service has issued a frost advisory in effect from 3 a.m. to 9 a.m. Temperatures are projected to fall to the lower 30s Fahrenheit (0–1 °C), with the possibility of brief dips to freezing (32 °F / 0 °C) in some areas.
Areas under alert
The advisory spans a large part of the state, including counties like Adams, Clark, Juneau, Monroe, Taylor, Jackson, Vilas, Florence, Forest, Lincoln, Langlade, Marathon, Portage, Wood, and Oneida. This includes key cities such as Wausau, Wisconsin Rapids, Stevens Point, Medford, Black River Falls, and Eagle River.
Impact on vegetation
Cold-sensitive plants are at high risk, with the forecast noting that “frost could harm sensitive outdoor vegetation. Cold-sensitive outdoor plants may be killed if left uncovered.” Residents in affected areas—particularly gardeners and farmers—are urged to protect any vulnerable crops or flowers by covering them or bringing them indoors where feasible.
Unseasonably cool trend continues
This advisory marks a continuation of below-average temperatures seen throughout May, and meteorologists are warning that additional cold snaps may still occur in Northern Wisconsin into early June. Though late-May frosts are uncommon, they are not unheard of in the region’s climate history.
For the latest developments, including updated forecasts and frost safety guidance, residents should check weather.gov or tune in to their local weather center.
