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Halloween forecast: Chilly air to make a comeback in northeastern US in time for trick-or-treating

Dry and mild weather will dominate a large part of the United States as trick-or-treaters head out the door on Monday evening, Oct. 31.

Rain jackets and winter coats can be left behind across most of the central and eastern U.S., but rain could put a damper on Halloween festivities across parts of the Upper Midwest and West Coast.

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Before heading outside on Monday evening, check AccuWeather MinuteCast® to know exactly when rain will fall.

Showers could dampen Halloween plans across Upper Midwest, West Coast

Trick-or-treaters across a portion of the West and Midwest may need to think twice before leaving the house without rain gear on Halloween.

"Trick-or-treaters may need some rain protection for their costumes across the Dakotas, Minnesota and Wisconsin, as well as along the West Coast from Seattle to San Francisco," AccuWeather Meteorologist Ryan Adamson said.

"Any rain should not be terribly heavy," he said.

Most of the rain will be hit-or-miss in nature, with some areas getting missed completely by any wet weather.

Those who do not wish to cover up their costumes with a rain jacket while trick-or-treating should consider bringing along an umbrella or poncho to dodge any hit-or-miss showers.

Despite the potential for wet weather, there will not be a need for extra layers under costumes as temperatures will be about 10 degrees above normal across the Midwest.

Temperatures will be closer to seasonable levels along the West Coast, generally in the lower 50s F.

Dry, mild weather to dominate central, eastern US

A dry and mild Halloween is in store for many across the Central and Eastern states.

"Much of the central U.S. through the Southeast looks dry and unseasonably warm for trick-or-treating activities," Adamson said.

Extra layers and winter coats can be left behind even as the sun dips below the horizon.

(Thinkstock/Zoonar/Zoonar RF)

Temperatures will generally range from the 70s across the South to the 60s across the Midwest during the early evening hours.

Only very spotty thunderstorms may linger from the afternoon into the evening along the Texas coast as winds blow off the Gulf of Mexico.

Chill to return to Northeast in time for Halloween

After a warmup over the weekend, cooler air may return to the Northeast in time for Halloween.

Temperatures are expected to fall into the 40s and lower 50s across the region by the time trick-or-treaters head out the door.

"Temperatures will generally be around seasonable for this time of year," Adamson said.

Jackets or extra layers may be needed for those sensitive to the cool conditions, but rain gear can be left at home as dry conditions will prevail across the region.