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Fox News Weather Center

Dangerous eastern US heat wave to yield highs in the 90s, 100s

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A heat wave will extend across much of the eastern United States over the next several days. For some southern areas, temperatures will approach or exceed 100 F.

For many areas, "this will be the hottest weather so far this year," according to AccuWeather Meteorologist Brett Rathbun.

The combination of temperature, humidity, sunshine and other factors will push AccuWeather RealFeel® Temperatures several degrees higher than the actual temperature.

For portions of the Northeast, this will be the first heat wave of the year with temperatures reaching 90 for three consecutive days.

New York City, Hartford, Connecticut, and Richmond, Virginia, are among the the cities, which will have a heat wave for the first time, prior to the weekend.

For Washington, D.C., Baltimore and Philadelphia, the weather pattern into the weekend will push the number of 90-degree days so far this year past 10 days, which is close to average.

Boston, Albany, New York, and Burlington, Vermont, can hit 90 during a day or two into Friday.

In the Southern states, while hot and humid weather is typical during June, July, August and early September, temperatures will average 5-10 degrees above normal in many locations through this weekend.

Columbia, South Carolina, could end up with seven or more days where the actual temperature reaches or exceeds the century mark during the heat wave.

Other southern cities that could hit 100 or higher include Augusta and Macon, Georgia; Wilmington and Fayetteville, North Carolina; Charleston, South Carolina; and Montgomery, Alabama.

The conditions will make it dangerous for those with respiratory problems. There will be an increased risk of dehydration, heat exhaustion and heat stroke for those who partake in vigorous physical activity.

Be sure to take breaks from the heat, preferably in air conditioning, and be sure to drink plenty of non-alcoholic fluids.

Be sure pets have plenty of fresh water and have a place in the shade, if not a cool location indoors. Never leave children and pets unattended in a vehicle.

The weather will offer a great opportunity to head to the beach, spend time at the lake or hang around the pool.

Only a few locations will be hit with a drenching thunderstorm that can briefly lower temperatures through Friday morning in the Northeast and through the weekend in the South.

More general and perhaps locally severe storms will reach the central and northern Appalachians, mid-Atlantic and New England during Friday afternoon into Saturday.

During the weekend, drier and slightly cooler air will push into the Northeast. Meanwhile, steamy air will continue in the Southeast states.

Another surge of heat is likely in the Eastern states during the middle and latter part of next week, according to AccuWeather Lead Long-Range Meteorologist Paul Pastelok.

"Episodes of heat, rather than steady heat, will continue in the Midwest and Northeast through much of the balance of July," Pastelok said.

In the South, the pattern will translate to many days where the temperature can climb to 5-10 degrees above average through July.