More than 110 million Americans from the northeast to California expect record-breaking temperatures through the weekend. Some major cities could see temperatures reach well above 90 degrees.

About 126 million Americans are bracing for an intense heat wave sweeping across the nation. ABC News’ Philadelphia affiliate W-PVI's Trish Hartman joins the show with the latest news.

The Grammy-nominated singer's debut performance at Fenway Park was delayed by two hours due to weather conditions.

Thirteen states in the East from Massachusetts to Kentucky are on alert for more extreme heat before the dangerous temperatures head to the West.

A major power outage has hit the Western Balkans as the region swelters in an early heat wave that has sent temperatures soaring to up to 40 degrees Celsius, or 104 degrees Fahrenheit

The train company was forced to cancel or delay key routes in and out of Penn Station because of extreme heat.

ABC News’ Greg Dutra discusses the excessive heat warnings issued across the U.S.

Heat alerts are in effect for 16 states from Maine to Kentucky as the dangerous heat wave continues.

Millions are under heat alerts as the start of summer brings record-breaking temperatures from coast to coast.

Extreme and potentially life-threatening heat is scorching millions of Americans in the Northeast and Midwest. Travel on the nation's busiest rail corridor disrupted.

Tropical Storm Alberto, the first named storm of the 2024 Atlantic hurricane season, made landfall in Mexico after pummeling Texas with rain.

As dangerously high temperatures hit 14 states, experts say precautions should be taken to stay safe in the unrelenting heat wave.

ABC News' Melissa Adan reports from Corpus Christi, Texas, on the first named storm of the season, Tropical Storm Alberto, causing death and destruction in the Texas-Mexico area.

Alberto, the first named storm of the season, slammed into coastal Texas after wreaking havoc in Mexico and leaving three dead.

ABC News chief meteorologist Ginger Zee has the latest on the path of the tropical storm and the historic heat wave that has 16 states on alert.

This year's summer solstice arrives as a dangerous heat wave impacts millions across the country, with early-season extreme heat impacting multiple regions.

A tropical system off the coast of Mexico has strengthened into Tropical Storm Alberto and is bringing heavy rain and coastal flooding to Texas.

Scorching temperatures are being recorded across 15 states from Kentucky to Maine.

A tropical storm warning is in effect in both Texas and Louisiana.

Dangerously high temperatures are hitting 14 states across the Midwest and Northeast on Wednesday as an unrelenting heat wave continues.

ABC News meteorologist Somara Theodore is in Central Park tracking the record heat in the U.S.

The National Weather Service in Caribou, Maine, issued its first-ever excessive heat warning for Wednesday.

Parts of south Texas could see up to 15 inches of rain, storm surge up to 4 feet and winds up to 40 mph.

More than 70 million Americans in 15 states are now under heat alerts.

A brutal and prolonged early heat wave is scorching millions of Americans in the Midwest and Northeast, with record-breaking 90 degree and higher temperatures in several major cities.

Extreme heat alerts are in effect for tens of millions of people in the United States as cities including Chicago break heat records

The first tropical storm of the season is expected to bring heavy rain and dangerous flooding to Texas this week.

ABC News chief climate correspondent Ginger Zee explains the health dangers from rising temperatures.

This is potentially the first tropical storm to impact southeast Texas this season.

ABC News chief medical correspondent Dr. Jen Ashton talks about handling exercise in the upcoming excessive heat with tips to stay cool.

Heat reportedly kills more people than any other type of weather in the U.S.

Heat alerts are in effect in at least 19 states in the Midwest and Northeast, with some areas expecting to see their hottest days in 30 years.

More than 90 million Americans are under heat alerts, with parts of the Great Lakes and Northeast expected to have their hottest stretch in 20 years.

Seven people have died in separate events in El Salvador that authorities attributed to heavy rains that have persisted since the weekend

The Northeast and Midwest are expecting the hottest weather in 30 years as a sweltering heat dome settles over much of the nation this week.

The National Highway Traffic Safety Administration and the nonprofit Kids and Car Safety warn of hot car dangers and promote safety tips.

The Northeast and Midwest, including New York City and Boston, are bracing for what could be the hottest stretch of weather in 30 years.

More than 80% of the U.S. is expected to reach 90-degree temperatures.

The temperature in Chicago is expected to be near the mid-90s all week and authorities are reminding people to hydrate and limit time outdoors.

A prolonged heat wave is hitting the Midwest and the Northeast this week in what could be the hottest stretch of weather for some people in 30 years.

China is being buffeted by two extremes of severe weather, with heavy rain and flooding in parts of the south and a heat wave and drought conditions in the north

A Cyprus health official says a second elderly person has died from heatstroke after a weeklong heatwave that baked the east Mediterranean island nation with reportedly record temperatures for the month of June

Flood watches across Florida while the Northeast gets ready for sweltering temperatures the heat dome is spreading from the Southwest where Phoenix hasn't dropped below 100 degrees since May.

More than 4 million people remain under a flood watch through Saturday evening in Miami and Fort Lauderdale, Florida.

More rain is possible and a flood watch has been extended through Saturday following the torrential rainfall this week.

Thunderstorms are expected to affect millions of people from Washington, D.C., to Philadelphia and New York to Boston. Meanwhile, saturated South Florida is bracing for up to five more inches of rain.

South Florida is dealing with heavy rain and flooding, while damaging winds, hail and rain are expected in New York and Philadelphia.

Parts of South Florida face increased weather risks after reaching deadly flash flooding levels Wednesday.

Extreme flash flooding and life-threatening conditions have caused Gov. Ron DeSantis to declare a state of emergency. ABC News' Victor Oquendo joins the show from Hallandale Beach, near Miami.

Gov. Ron DeSantis declared a state of emergency in Florida after 25 inches of rain fell in the last 48 hours. A flood watch is in effect until Friday evening from Miami to West Palm Beach.