Saturday…The first weekend day of this winter with a high temperature under 30-degrees. Indiana lake snow, which lingers as the day opens over sections of Porter and La Porte counties, will continue an eastward shifting, allow snowfall to diminishing to flurries and gradually end in those counties. The heaviest northwest Indiana lake-snow totals may exceed a foot in some sections of Lake and Porter counties, though amounts will vary widely. Ongoing lake effect snow over northwest Indiana shifts east of Lake and Porter counties by afternoon. Sunshine, blustery and frigid. A peak thermometer reading of 19-degrees at OHare would tie this winters coldest daytime temperature recorded on January 14. West winds 12 to 24 mph limiting daytime wind chills to the 5-below to 5 above range. Mainly clear, quite cold and breezy Saturday night. Range in nighttime lows: 6-above coldest inland locations, 9 at OHare and 13 in the Loop.

Sunday…Mostly sunny, breezy and cold. West winds 11 to 23 mph assure afternoon wind chills no higher than the teens. Clouds begin to increase late Sunday night.

Monday…Clouding over and breezy with more seasonable temperatures. Light snow developing in the afternoon, continuing Monday night. Modest 1 to 2 inch accumulations are possible. Southwest winds 10 to 22 mph.