A weakening storm system will move into the Great Lakes today. Warm air will spread northeastward across the area, running up and over the cold air in place. This will result in a mix of snow, sleet, and freezing rain this morning across the entire area. This afternoon, temperatures will rise above freezing, changing the precipitation to rain showers. Highs today will rise to the mid 30s.
The storm will move into Ontario tonight and Saturday dragging a weak cold front across the area. There could be a few lingering rain or snow showers tonight with lows dipping to around 30 degrees.
Saturday will be partly cloudy and fairly mild with highs in the low to mid 40s.
Some colder air will spread across the region Saturday night and Sunday. At the same time, some wrap around moisture behind the departing storm system will brush the area. Scattered snow showers are possible Saturday night through the day on Sunday, especially across the northeast where there could be some limited input from the lake. Lows Saturday night will be in the low to mid 20s with highs on Sunday in the mid 30s.
Fair weather will return for Monday as high pressure briefly builds across the region. Highs Monday will reach the low to mid 40s.