The snow accumulation forecast has trended downward in the past 12 hours, therefore total accumulation in Arlington Heights will likely be less than 0.8 inch — maybe even less than 0.5 inch. Northwest Wisconsin is on target for around 20 inches of snow accumulation with snow accumulation totals being less than an inch in most of northeast Illinois and near two inches in northwest Illinois. Saturday Night: Snow likely, mainly after midnight. New snow accumulation of less than a half inch possible. New snow accumulation of less than a half inch possible.

Source: CNN January 21, 2023 19:34 UTC