Local dairy farmers are providing extra protection for their herds as Monday's winter storm is being followed by arctic-like windchills in Door and Kewaunee counties.  Like humans, dairy herds are impacted by cold weather and sub-zero temperatures.  Greg Letter, owner of  Thunderstruck Holsteins in Brussels, says extra precautions are being taken to ensure his herds are safe from the cold.

Letter says the herds' drinking water is also being warmed up so they stay hydrated and warm during the extreme cold.