Photo by Ronald Martinez/Getty ImagesFans in Green Bay suffered through frigid temperatures, thanks to Arctic air that has come south It’s polar bear weather today for much of the Midwest. Temperatures are in the -20sº F (-28º C) and -30sº F (-35º C) in eastern Montana, North Dakota, northeast South Dakota, Minnesota and northern Iowa. With the stiff wind, it’s even worse—wind chills in the -40sº