Polar Vortex Is Weakening; What Will That Mean For December? | Weather.com

Polar Vortex Is Weakening; What Will That Mean For December? | Weather.com

January 23, 2026

Updated: January 23, 2026, 12:00 pm ESTPublished: January 23, 2026, 12:00 pm EST

It has been a warm autumn so far. But the polar vortex is forecast to change unusually early, and that could impact your weather in December. Meteorologist Rob Shackelford breaks down why.

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