The first in a parade of upper-level low pressure systems is forecast to move in Monday evening, with a few light sprinkles/showers already starting to fall over northern Illinois. It'll most likely be rain rather than snow we see with any one of the systems passing through as temperatures throughout the week are expected to remain well above average.
Following our third 50-degree (plus) day in Rockford this year, temperatures will slowly fall through the evening before settling in the low 30s overnight. A wound up upper-level low moving out of the Dakotas Monday evening will slip into the Midwest bringing with it a few showers, and perhaps even a rumble of thunder over Iowa during the late evening hours. Most of the precipitation will be out before sunrise Tuesday. Rain totals won't be much and will remain under a tenth of an inch.
Following a cloudy start early Tuesday drier air moving in for the afternoon will allow skies to clear and temperatures to warm back near 50 degrees. But as quick as the first round of clouds clear, another round will move in Tuesday night. This will be ahead of our next quick moving system that'll pass through the Midwest Wednesday. This low will slide to the north of the Stateline which will bring temperatures back to 50 degrees Wednesday afternoon. Skies will remain mostly cloudy with a few scattered showers during the day.
Winds will then turn to the northwest late in the day Wednesday which will bring temperatures down slightly Thursday. A brisk northwest wind will help keep some of the cloud cover with a slight chance for a few sprinkles or snow flurry during the afternoon. Temperatures will warm to 43 degrees - still remaining above average.
The third storm system is then forecast to pass to our north again Friday, pulling temperatures back close to 50 degrees for the afternoon. This one, however, will come with quite a bit of wind during the afternoon. High pressure will then settle in for the weekend.
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