After days of soaking rainfall, with some places receiving more than 300 percent of monthly averages, outdoor celebrations in New York City, Boston, Philadelphia and Washington, D.C., will fair well for July Fourth.
Heat and humidity will be the biggest concerns for major cities on the East Coast. Boston will have highs in the low 90s, but with 65 to 75 percent humidity, sun intensity and other contributing factors, the AccuWeather RealFeel® temperature will push to 101. These conditions will make hydration and heat protection especially important while spending time in the sun for barbecues and parades. The weather will stay warm and humid for the start of the Boston Pops Fireworks Spectacular at 9:30 p.m. A heat advisory has been issued for the hours of 11 a.m. to 8 p.m. for the city.
A heat advisory has also been issued for the boroughs of New York City; the expected afternoon high temperature is 87, with overnight lows dropping into the 70s. The chance for a passing thunderstorm may temporarily dampen some outdoor activities for the evening, but it will not reach the drenching level of storms that have started the week. Conditions for the 10:30 a.m. reopening of the Statue of Liberty should be clear. The Macy's Fourth of July fireworks display, the largest in the country, will begin along the Hudson River around 9:25 p.m. when temperatures will have lowered to about 80, but it will still feel closer to 85.
Spotty thunderstorms may also threaten some afternoon or evening events in the nation's capitol, but any rain should be fleeting. The day will be hot and sunny with temperatures hitting 90. Humidity will be a factor, reaching 71 percent in the evening for the fireworks show over the National Mall. According to AccuWeather Expert Senior Meteorologist Alex Sosnowski, the Smithsonian Folklife Festival and the Fourth of July celebration at the National Archives will coincide with the hottest part of the day. Temperatures will have dropped to the 80s for the start of the fireworks at 9:15 p.m.
Philadelphia, where the June 1 to July 2 rainfall total was 295 percent above average, risks only occasional rain or thunderstorms for Independence Day. The high for the day will be 89 degrees, but it will feel more like 95. The concert at Benjamin Franklin Parkway will begin at 7 p.m., with the fireworks estimated to start at 10:30 p.m. Temperatures will have dropped only a few degrees into the lower 80s while humidity levels will remain in the high 70s to low 80s.
AccuWeather Expert Meteorologist Paul Walker says that while some areas will have a chance of rain at times in the afternoon, most of the day will be rain-free.
The most important safety considerations for the day will be for heat and lightning. When attending daytime events while cloud cover is minimal, sunscreen will be crucial for avoiding painful sunburns. Drinking plenty of water and temporarily retreating to the shade or indoors will help combat the risks for heat exhaustion or heat stroke. If a thunderstorm does move into an area, the only way to stay safe from lightning risks will be to head indoors to an enclosed, walled building.
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Many areas in the Eastern states will have consistent summerlike heat and a buildup of humidity for the last week of May.
Yet another round of storms is forecast fire up across parts of Texas and the southern Plains into Tuesday night with the risk of severe weather, including flash flooding.
The extended Memorial Day Weekend ended on a wet note across eastern Texas when heavy rains and severe thunderstorms moved in late on Monday.
Parts of the Great Lakes and the Ohio Valley states will take a turn of severe thunderstorms with localized flooding downpours into Tuesday night.
Severe storm- and flood-weary residents of Texas and the southern Plains will soon get a break as a change in the weather pattern develops.
New England (1967)
(25th-26th) Coastal New England battered by a great Nor'easter. Winds mounted to 70-80 mph on the coast. Blue Hill had sustained winds of 60 mph and Logan had sustained winds of 50 mph. Lowest pressure of 29.30" was measured over the ocean; 5-10" of snow fell in the Berkshires with considerable damage to the tobacco crop in the Connecticut River Valley. Temperature dropped to 31 degrees at Pittsfield on the 30th for a remarkable end of May freeze.
Cut Bank, MT (1982)
35 degrees with a mix of snow and rain. The high temperature from the previous day was 78.
Erie, PA (1991)
One-half inch of rain fell in only 5 minutes.