Hot, humid air to make a comeback in northeastern US before June ends

Residents of the northeastern and midwestern United States should not get used to the September-like air that settled in early this week.

Low humidity and temperatures more representative of September will continue to filter across the Great Lakes, Ohio Valley, Northeast and mid-Atlantic into Wednesday morning.

Comfortable conditions have also seeped well into the Deep South.

“The only real difference in how it will feel compared to September will be the strong June sunshine,” AccuWeather Senior Meteorologist Alex Sosnowski said. “Where and when the sun is out, it will feel warm, especially in your car.”

Spotty showers and locally gusty thunderstorms will prevent bright sunshine from complementing the comfortable air in parts of the Midwest and Northeast. Waterspouts were observed over Lake Erie on Monday morning.

A few thunderstorms passed through the region on Tuesday afternoon, producing hail and localized flooding.

The weather that has had some people touting long sleeves and reaching for jackets will dissolve quickly for the second half of the week.

“After a pleasant start to the week with low humidity and below-normal temperatures, we expect a pattern change from Wednesday to Friday in the central and eastern United States,” according to AccuWeather Long-Range Meteorologist Max Vido.

The warmup will begin over the Midwest on Wednesday.

The I-95 corridor of the Northeast will experience a significant rise in temperatures on Thursday. However, the arrival of sweltering humidity is likely to be delayed until Friday and will not be quick to depart.

“The I-95 corridor can expect several days of temperatures in the upper 80s to low 90s late this week into the early part of next week,” Vido said.

While the region has dealt with episodes of sizzling temperatures so far this summer, it will be quite a change compared to highs of the 70s to the lower 80s.

When humidity is factored in, the change will be even more noticeable.

“High humidity will send AccuWeather RealFeel® Temperatures well into the 90s, so residents will need to stay properly hydrated when going to outdoor activities and Independence Day cookouts," Vido said.

Temperatures are likely to not soar as much as humidity levels in the Midwest and interior Northeast late this week and through the holiday weekend due to more clouds and thunderstorms, according to Vido.

However, humidity will still make the air uncomfortable and have residents turning up air conditioners and fans.

“While the more frequent rainfall is expected inland, thunderstorms could reach the Northeast coast on several days, providing some relief to the uncomfortable afternoon heat,” Vido said.

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