The FOX Forecast Center is tracking an arctic air mass rushing down into the northern U.S. just in time for Halloween, threatening to push temperatures below freezing for trick-or-treaters and even create a white Halloween for some.
"Eventually, we do get enough cold coming in from the Russian source, from the Canadian source that we start to see our temperatures near the freezing point right around the Great Lakes," FOX Weather meteorologist Amy Freeze said.
This setup will also contribute to the potential for a snowstorm to develop in parts of the central U.S. this weekend.
Frightening weekend chill
Take note, party planners: The Halloween chill begins this weekend.
Chicago will see about a 20-degree temperature drop between Friday and Saturday.
According to the NOAA's Climate Prediction Center, much of the central and western U.S. is expected to dip well below average from Halloween weekend through early next week.
Hair-raising cold on Halloween
By Tuesday night, the cold weather will be in place from the northern Plains to the Northeast.
The Great Lakes, Upper Midwest and Northeast are forecast to experience these horrific temperatures, requiring creative Halloween costume adjustments.
In the Northeast, the most significant temperature changes will likely not come after Halloween.
New York City starts with high temperatures in the 70s this weekend, but by Monday, highs hold in the 60s before low temperatures bottom out in the 40s by the end of next week.
As the cold air descends deeper into the U.S., even places like Texas could feel temperatures drop below freezing, which would be very cold for this time of year, the FOX Forecast Center noted.
Spooky snow potential
Dress like a ghost on Halloween and you might disappear if the snow sticks. A potential winter storm brewing for the weekend has the potential to produce at least light snowfall across portions of the central U.S.
The FOX Forecast Center is tracking rain, snow and mixed precipitation in the central U.S., but it's still too early to pinpoint exactly when the wintry weather will arrive and who will be the most impacted.
Read more of this story from FOX Weather.