Wisconsin Weather, climate and geography

Weather and climate

Best time to visit

Summers are warm with cool nights. Winters are cold and snowy, especially around the Great Lakes where conditions can be severe. Winter temperatures of minus 40ºC (-40ºF) or lower are common in the north, and summer temperatures are often above 30ºC (90ºF) in the south of the state.

Required clothing

Lightweights for the summer with cover-up for cool nights. Heavyweights for the winter and extra bundling for winter sports.