Low pressure over the Great Lakes this morning will move northward into Ontario this afternoon. Deep moisture and mild air will stream northward across the region today as the system drags a weak cold front eastward across the area. Showers are likely across the entire area, and a few spots could even see a thunderstorm. Some locally heavy downpours are possible. High temperatures today will reach the low to mid 50s.
Tonight the rain showers will exit to the northeast as weak high pressure noses into the area. Skies will remain mostly cloudy with low temperatures falling to the low to mid 40s.
On Saturday, another storm system will begin to take shape across the lower Mississippi Valley. This system will spread clouds back across the region during the day Saturday, with rain showers arriving late in the day. Saturday will be very mild with highs reaching the upper 50s to low 60s.
The storm system will track from the Mississippi Valley, northeastward through the Ohio Valley and into the eastern Great Lakes on Sunday. Steady rain will overspread northeastern Ohio Saturday night and continue through the day on Sunday. It will be cooler on Sunday with highs reaching the mid to upper 40s.
As the storm moves to our northeast Sunday night, a strong cold front will move slowly eastward across the area ushering in colder, more seasonable temperatures. Rain showers Sunday night could mix with or change to snow, with rain or snow showers continuing through the day on Monday. Highs on Monday will be in the mid 30s.