Intermittent light freezing rain will be possible tonight into early Friday through about 4am CST or so before the precipitation exits off to the east. With temperatures near to below freezing, this may cause slippery conditions in spots. Untreated roadways or those less heavily traveled or overpasses and bridges may be most susceptible to a light glaze of ice forming. Also, untreated parking lots or sidewalks may be susceptible to light glazing. Finally, black ice may be possible on on some roads in northern Illinois where snowmelt occurred during the day on Thursday.
Those with travel plans tonight into early Friday morning should be prepared for the possibility of slippery conditions. Slick roads will remain possible in spots for the Friday morning commute. Check updated road conditions before driving.
…Freezing Drizzle or Light Freezing Rain Possible Tonight…
Scattered light precipitation is expected to develop across north
central Illinois this evening, and then spread through remaining
portions of northern Illinois and northwest Indiana tonight. Some
warming expected today will support an initial wintry mix,
however, freezing drizzle or light freezing rain will likely
become the more dominant precipitation type during the overnight
hours. Given the cold surface temperatures, some light icing is
possible by the early morning hours on Friday.
Those with travel plans tonight into early Friday morning should
monitor latest forecast updates, and be prepared for possible