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Fox News Weather Center

Rain to Spoil Fourth of July Celebrations in Northeast

A batch of rain will swing across the Northeast spanning Friday night and Saturday in the Northeast, while spotty downpours occur elsewhere across the nation and threaten to spoil some Fourth of July festivities and outdoor plans.

A storm system that brought rain and thunderstorms to the Tennessee Valley on Friday will spread some downpours into the central Appalachians beginning on Friday night.

Rain Returns for the Fourth of July

During the day Saturday, as rain tapers off over western Virginia, West Virginia, western Maryland and western and central Pennsylvania, the rain will spread into the balance of eastern Pennsylvania, northeastern Maryland, New Jersey, much of New York state and southern New England.

During Saturday evening, only spotty storms will remain in the wake of the system over the mid-Atlantic states. Rain will taper off from west to east across southern New England, eastern Virginia and the Delmarva Peninsula.

According to AccuWeather Chief Meteorologist Elliot Abrams, "The steady rain will depart most areas of the Northeast in time for evening fireworks, unless the storm's progress slows."

Odds favor little or no lingering showers and thunderstorms in the wake of the system over much of the mid-Atlantic by the time of fireworks displays including Washington, D.C., Baltimore, New York City, Pittsburgh, Philadelphia, and Harrisburg and State College, Pennsylvania.

Still air and high humidity in the wake of the rain could cause smoke from the fireworks to linger longer than desired. This could cause some pauses in the shows from time to time, especially where rain ended within a couple of hours of the start of show.

Boston is likely to be one of the last areas for the rain to move off.

Those who have cookouts or firework displays planned should keep an eye on the sky and check AccuWeather MinuteCast® to know when plans need to be moved indoors.

Be sure to utilize the local AccuWeather radar for your location.

According to AccuWeather Senior Meteorologist John Gresiak, "Fog could be an issue for folks heading home from Fourth of July activities during Saturday night, where it rained during the day or early in the evening."

Elsewhere across the nation, spotty drenching showers and thunderstorms will linger into the evening hours from Oklahoma, Arkansas, Tennessee and North Carolina to the Gulf Coast. However, the majority of these storms will diminish rather quickly soon after sunset.

Track severe weather, flood and red flag watches and warnings, as well as boating and surf advisories on the AccuWeather.com Severe Weather Center.

The same is true for spotty storms over the central and southern Rockies to the deserts and around the Sierra Nevada near the California/Nevada border.

A few spots from South Dakota to waters around Lake Huron may have to put up with a lingering shower or thunderstorm into Saturday evening.

During the weekend, smoke from wildfires in central and western Canada are most likely to continue to drift into parts of the northern Plains and the Great Lakes region.

Image taken on June 29, 2015, centered on south-central Canada and the north-central United States. Smoke appears gray, while clouds appear white. (NASA Satellite Photo)

The smoke could affect air quality and the sky may take on a hazy appearance despite low humidity and cool conditions.

Due to drought conditions, personal fireworks are banned in some areas of the West, including California. Be sure to check with your local authorities. Use extreme caution when using grills and open flames. Never leave a grill or campfire unattended. Make sure the site has thoroughly cooled or been extinguished with water before departing.

AccuWeather.com will continue to provide updates on the weather to help with your outdoor plans during the holiday weekend and beyond.