(NEW YORK) — Bitter cold is moving into the northern Great Lakes and upper Midwest before a dangerous and possibly record-shattering freeze invades the Northeast.

By Thursday evening, the wind chill — what temperature it feels like — is expected to reach the minus 20s in Minneapolis. On Friday morning, the wind chill is forecast to fall to minus 18 degrees in Chicago.

The cold will move into the Northeast Friday morning, with wind chills expected to drop to 0 degrees in Boston, minus 10 degrees in Buffalo and minus 25 degrees in Burlington, Vermont.

The coldest air for the Northeast will hit Saturday morning, when wind chills are forecast to plunge to a bone-chilling minus 33 degrees in Boston, minus 23 degrees in Hartford and minus 9 degrees in New York City.

The most extreme forecast is for Caribou, Maine, near the Canadian border, where wind chills could be as low as minus 65 degrees on Saturday morning. That would clock in as the coldest wind chill on record.

But the extreme cold won’t last for long. On Sunday and Monday, New York City is forecast to thaw to 46 degrees and 50 degrees, respectively.

Click here for tips on how to stay safe in the cold.

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