High Pressure builds in on Monday. A warm-up, sunshine and breezy southwest winds arrive with it.
Temperatures reach the 40s by Tuesday through Thursday and 50s are possible by Friday.
A deep trough over the southwestern US will eject several storm systems our way. The chances for rain increase Thursday through Saturday.
By next Sunday temperatures fall and the following Monday or Tuesday a large winter storm will affect the upper Midwest. Too early to tell if it will mean rain or snow for Chicago.
Monday: Mostly sunny, breezy and mild. High 40. Low 27.
Tuesday: Mostly sunny and mild. High 41. Low 31.
Wednesday: Partly cloudy. High 44. Low 34.
Thursday: Mostly cloudy with a chance of rain and storms. High 48. Low 40.
Friday: Mostly cloudy and very warm with rain showers. High 50. Low 41.
Saturday: Mostly cloudy with a chance of rain turning to snow overnight. High 48. Low 32.