Video: Snow falls in Chicago on Halloween afternoon on Oct. 31, 2023. (Patty Wetli / WTTW News)

The scariest thing this Halloween is the weather forecast for trick-or-treaters.

Expect bursts of snow, gusts of wind up to 45 miles per hour and wind chills in the teens and 20s, according to the National Weather Service.

We're monitoring two additional snow chances and areas for this evening and overnight, one in NE IL and the other in NW IN with lake effect snowfall. Some travel impacts from both are possible, but uncertainty still exists!#ILwx#INwxpic.twitter.com/zTKtsx4ZEb

— NWS Chicago (@NWSChicago)October 31, 2023

In fact, it's shaping up to be one of the nastiest Halloweens on record, weather-wise. If the forecast holds, Halloween 2023 will slide into the Top 10 all-time coldest and snowiest.

(National Weather Service Chicago)

Contact Patty Wetli:@pattywetli| (773) 509-5623 |[email protected]