Chicago’s mild January interlude will be put on hold in the upcoming days as temperatures take a decided turn to more typical January levels. Saturday will start mild with readings around 50 but temperatures will drop through the day falling into the 30s at night when an area of rain moves into the area as a weather disturbance passes south of the city. As temperatures continue to fall Saturday night the rain will gradually transition to sleet and then to snow with some accumulation possible especially north and west of the city. Slippery conditions should prevail across the area by Sunday morning as temperatures fall into the 20s causing the rain and slush to freeze.
Cold weather will prevail the rest of the week with daytime highs holding mainly in the 20s, though a brief midweek warm-up should boost readings into the lower and middle 30s while bringing a chance of some snow or snow showers.