Clouds will blanket our skies this weekend which will hinder our chances to reach the upper 60s and lower 70s that we have been feeling this week. Temperatures in northern Illinois will only top out in the upper 50s to low 60s.
This is a picture of upper level weather data. As you can see, the upper level low pressure system is centered over northern Illinois and eastern Wisconsin. With regular systems, this low would continue to push off eastward and make its way out within a few days. But fortunately for the rain lovers, this system will slowly move eastward and then retrograde throughout the weekend. Its movement will basically wobble back and forth until the Tuesday to Wednesday time frame. This teeter-totter movement will continue to bring showers for our area. Not only will this system give us rain, but it will bring in some cooler temperatures as well.
Current radar shows lake effect showers moving southeast into Indiana. What will be interesting to watch over the weekend will be what develops over the lake. There is enough ingredients for lake effect showers to form all weekend and chances for waterspouts off the shore is not out of the question.
Without further-ado, here is your forecast for this weekend for the Chicagoland area.
-Meteorologist Heather Brinkmann
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