— Get ready for the return of the polar vortex.
While the calendar shows it’s July, the climate in some areas won’t feel much like summer.
A jet stream dip is causing cold arctic air to reach central and eastern parts of the United States.
With it will come lower temperatures that will linger throughout the weekend.
Paul Walker, AccuWeather.com senior meteorologist, said the polar vortex is always there, but usually confined to a smaller area over the Arctic Ocean.
“This one is being spun farther south,” he said. “It’s unusual and it’ll be unseasonably cool, but it’s not unheard of.”
Temperatures Tuesday are expected to reach the mid 70s with showers, but it’s the nighttime low of 52 that will make it feel more like fall.
Highs Wednesday will only reach the upper 60s with nighttime temperatures once again falling to the low 50s.
“That’s more typical for the middle of September, not the middle of July, so it’s a shock,” Walker said.
By Thursday, Friday and into the weekend, conditions will start to improve and temperatures will rebound to the low and mid 70s.
“Next week we’ll start to see more typical weather in the upper 70s,” Walker said.
If there’s anything good to come out of this cool weather pattern it’s that there will be virtually no humidity.
“For as humid as it’s been, it’ll be a nice break and refreshing. That’s the welcome part of this,” Walker said.