Slow warming trend into the holiday weekend

 For the third day in a row high temperatures have failed to warm out of the 50s, with Wednesday temperatures so far only reaching 52 degrees. This is well below our average high of 73 degrees. While we will see a little bit of a warming trend into the holiday weekend, it looks like the cooler pattern will stick around not only into the weekend but also into next week.

Remainder of tonight:

Drizzle and light rain showers have moved back into northern Illinois which has caused visibility to fall in some locations. As the drizzle continues into evening visibility may remain an issue, something to keep in mind if you're out and about.

Temperatures won't fall off too much as overnight lows dip into the mid-40s. Widely scattered rain showers and drizzle will continue on and off through the night.

Thursday

As low pressure moves further away from the Stateline it'll begin to take a little more of its moisture with it. However, increasing winds aloft will be moving down the western Great Lakes which could help fire off a few isolated showers with the heating of the day. Any showers that do develop will wane towards evening with perhaps some clearing late in the day.

Afternoon temperatures are expected to remain in the upper 50s, but a few spots could reach the low 60s, especially if we see some sunshine during the afternoon.

Friday

Drier air moving in Friday will help clear skies even further as high temperatures warm back into the low to mid 60s. Still not quite where they should be, but a step in the right direction. This high-pressure system will remain in place across the northern Great Lakes through the weekend, but we won't feel much warming from it.

As a trough of low pressure remains anchored across the Northeast our winds aloft will continue from the north in a somewhat active pattern in the jet stream. While the bulk of the storm systems will pass us to the south, we could see a few more clouds from time to time heading into the weekend.

Holiday weekend

The 'unofficial start to summer' won't necessarily feel like it as temperatures through the weekend remain in the mid-60s, nearly ten degrees below average. While most of the weekend is expected to stay dry there could be a few light rain showers towards the latter half, leading into Memorial Day itself. Even though temperatures will make their way out of the late season chill, we're still going to remain below average. The average high through the weekend should be in the mid-70s.

Any rain that does come down will be light with heavier rain showers, and accumulations, expected to remain south. But light showers from time to time could occur through Monday so keep that in mind if you're holiday weekend plans have you outside.