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Fox News Weather Center

Steamy Air Returns to Midwest, Northeast Next Week

The unofficial start to summer will definitely feel as such across the Midwest on Memorial Day. The Northeast will escape the steaminess until after the holiday.

Cooler air returning to the Midwest and Northeast to close out the week is not a sign of things to come for the holiday weekend.

While heat and humidity will remain absent on Saturday, a gradual warming trend will follow through Memorial Day.

The Midwest, however, will not be able to enjoy the Memorial Day holiday weekend without an increase in humidity.

More humid air will first funnel into the Upper Midwest, including Minneapolis, on Sunday before encompassing Chicago and the rest of the Midwest on Memorial Day.

The combination of the humidity and temperatures soaring well into the 80s will cause some discomfort for those who have picnics, parades and other outdoor Memorial Day celebrations planned.

Memorial Day will definitely feel like a summer day in St. Louis and Louisville, Kentucky, with temperatures set to soar to the 90-degree mark for the first time this year.

While these two cities will be dry, thunderstorms erupting in the steamy air threaten to cause disruptions to outdoor festivities on Monday across upper parts of the Midwest and Great Lakes.

The Northeast, meanwhile, will turn warmer for Memorial Day but will likely not notice an increase in humidity until Tuesday.

The return of steamy air to the Midwest and Northeast does not mean that summertime warmth is here to stay since another shot of more comfortable air may advance southward as next week progresses.

"It will be a close call for northern and eastern New England as to whether they are fully in the warmth or they get a brief taste of it around Memorial Day," stated AccuWeather.com Long Range Forecaster Mark Paquette.

The cooler air preceding and set to follow the warm surge, however, should not concern farmers and those who have already planted their gardens.

"Based on the weather pattern that I see unfolding, the threat for a frost and freeze is pretty much done for the Northeast, southern Ontario and the St. Lawrence Valley," stated AccuWeather.com Senior Meteorologist Brett Anderson.

The same can be said for the Midwest.