“It’s not the heat, it’s the humidity. It’s not the cold, it’s the windchill.” Leave it to a meteorologist to leave you feeling worse than you thought possible.

Over the next three days we’ll get a taste of what it was like in the 1960s and ’70s, a concentrated scoop of polar-flavored gelato. There will be a bitter aftertaste.

Air temperatures should stay below zero into Tuesday morning; a good 72-82 hours of negative numbers. Sunday windchill values dip to 35-45 below just south and west of MSP.

The first half of meteorological winter was tame. Two winters ago we grappled with an extended polar vortex. But the harshest winters came during the ’60s and ’70s; not just days but weeks of subzero cold.

Just about the time you throw up your frostbitten hands in despair it’ll warm up. I still see a thaw by the end of next week. Hunch: A slowly fading El Niño will keep us milder than average into spring. “Nothing burns like the cold,” wrote George Martin in “Game of Thrones.”