Locally Dense Fog Tonight... Areas of fog will continue tonight from east central and south central Minnesota into Wisconsin. Some fog will be locally dense, with visibilities less than 1/2 mile at times. Motorists should be prepared for poor visibilities while traveling tonight. Widespread icing on roads is not anticipated as temperatures remain above freezing, but watch out for bridges and underpasses later tonight when temperatures drop slightly, creating the potential for some icy spots on and under bridges.