The Ashland County Sheriff says a 75-year-old Mason, Wisconsin man was found in a flooded ditch near a pickup truck, which was also in the water.
They say the death is a result of the flooding.
The incident remains under investigation.
The Wisconsin Department of Military Affairs says damage assessments will continue in northwestern Wisconsin, following heavy rains over the weekend that caused flooding across the region.
The National Weather Service says portions of Douglas, Bayfield, and Ashland counties received 6-10 inches of rain over the past three days, while Drummond in Bayfield County received 15 inches between Saturday and Monday morning.