Warm air will remain in place overnight and Sunday ahead of an approaching low. Southerly winds and abundant low-level moisture will result in dense fog along and south of US 2 in Minnesota and Wisconsin. Areas of fog expected north of US 2 as well, but will not be as dense. Expect lows tonight from 30 to 35 degrees across the Northland. Light rain and drizzle will fall Sunday morning, with a break in the precipitation over Minnesota during the afternoon. Highs will reach the middle 30s north and the middle 40s southeast. Winds will turn northerly on Sunday evening ushering in colder air. As the cold air moves in, precipitation will change from rain and drizzle to snow. Expect the changeover to begin by early evening over north-central Minnesota and after midnight over northwest Wisconsin. Snow accumulation of 1 to 3 inches is expected through Monday evening, with higher totals in Ashland and Iron Counties.