National Weather Service United States Department of Commerce

An Arctic airmass remains over the Northland, producing very cold temperatures and dangerous wind chills. An Extreme Cold Warning remains in effect today through Tuesday morning due to wind chills as cold as -50 degrees. Dress warmly in layers, including a hat and gloves/mittens to limit exposed skin if you need to go outside. Stay warm!
Prolonged light lake effect snow will continue over the Bayfield Peninsula and other areas along the South Shore today through Tuesday as an Arctic airmass brings cold temps and northwest winds. Snow amounts will be higher the closer you are to the Apostle Islands, with far northern Bayfield County seeing up to 4". Expect snowfall rates to be fairly light during this prolonged period of lake effect snow.
We’ll start to slowly climb out of our frigid temperatures over the next couple days, though overnight lows below zero are likely for most of the week. Lake effect snow along the South Shore continues through tomorrow (additional 1-2”), with some widespread light snow possible across the Northland Tuesday evening into Wednesday morning. Light accumulations of mostly an inch or less are expected, except along the North Shore where 1-2” is possible.