Weather
Wisconsin Weather: Frost Advisory Through Monday Morning
Green Bay, Wisconsin – A widespread frost advisory is in effect for multiple counties across Wisconsin starting late Sunday, September 13, 2026, and…
By Cameron Hayes · 2026-09-13T19:04:34.002Z
Green Bay, Wisconsin – A widespread frost advisory is in effect for multiple counties across Wisconsin starting late Sunday, September 13, 2026, and continuing into the early morning hours of Monday, September 14, 2026. Residents in Lincoln, Oneida, Vilas, Florence, Forest, Jackson, and Monroe Counties should prepare for chilly conditions that could damage sensitive outdoor vegetation throughout the region.
According to the National Weather Service, temperatures are expected to fall into the lower to middle 30s in the northern counties of Vilas, Oneida, Forest, Florence, and Lincoln between midnight tonight and 8 a.m. CDT Monday, September 14, 2026. Meteorologist Eckberg noted that in typical colder spots within these areas, temperatures may drop a few degrees below freezing for a period of time around sunrise. This advisory specifically impacts the cities of Spread Eagle, Commonwealth, Rhinelander, Crandon, Merrill, Tomahawk, Aurora, Lac Du Flambeau, and Eagle River.
For residents in the western portion of the state, specifically within Jackson and Monroe Counties, a separate frost advisory has been issued by the National Weather Service in La Crosse. This advisory is in effect from 2 a.m. CDT Monday, September 14, 2026, to 8 a.m. CDT Monday, September 14, 2026. Temperatures in this area are expected to reach as low as 32 degrees, with frost formation particularly favored in low lying and bog locations, while higher elevations may remain 5 to 10 degrees warmer.
The impact of these dropping temperatures is significant for gardeners and agricultural interests, as sensitive outdoor plants may be killed if left uncovered. The National Weather Service advises residents to take immediate steps to protect any tender plants from the cold before the freezing temperatures arrive tonight. Following these precautions is recommended to mitigate the risk of frost damage to vegetation in affected communities, including the cities of Sparta, Black River Falls, and Tomah.
For those seeking more detailed information or continuous updates regarding these weather conditions, the National Weather Service encourages the public to visit their official website at http://www.weather.gov/GreenBay. Monitoring local forecasts remains the best way to stay informed as these conditions evolve through the early hours of Monday, September 14, 2026.
Have something happening in your community? Hit the red Post/Submit button above to share events, classifieds, stories and local updates with Country Herald.
SUPPORT LOCAL INDEPENDENT NEWS! Have a tip? Message us!