‘Polar vortex’ may return to Chicago next week

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A "polar vortex" could be returning to Chicago next week. / graphic from the National Weather Service

It may be July, but that won’t stop the “polar vortex” from returning to Chicago next week. No need to break out the snow shovels just yet though.

The July version of the meteorological phenomenon—which kept the area in a deep freeze last winter—will be much more subdued, but temperatures are likely to be “well below normal” early next week, according to the National Weather Service.

Overnight lows could reach the low 50s downtown and sink into the low 40s further away from the city on Tuesday and Wednesday, according to Mark Ratzer, a meteorologist with the National Weather Service in Romeoville.

Highs during the day could struggle to reach the lower 70s.

It’s possible the city could reach record lows for July, which are in the lower 50s, Ratzer said, though he cautioned the forecast could change before then.

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