Dangerous heat continues to grip much of the nation, including the central Plains, Midwest, South and mid-Atlantic with more than a thousand records tied or set so far this week.
Temperatures will soar well into the 90s and past the century mark across these regions, while severe thunderstorms fire along the northern rim of heat.
Heat exhaustion and heat stroke are threats that people should take caution against by staying indoors in the air conditioning as much as possible and drinking plenty of water. Children and pets should never be left inside a car, for any amount of time in this heat.
The heat will not only take a toll on people and pets, but also some roads have already been buckling.
Underneath the area of high pressure promoting the heat, the air will become stagnant across much of the country. Poor air quality will cause concerns for the elderly and people with respiratory problems.
St. Louis, Kansas City, Chicago and Nashville still lie in the heart of the dangerous heat wave this week, as the heat challenges long-standing record highs. With high humidity factored in for cities like Kansas City and St. Louis, AccuWeather RealFeel® temperatures will soar to very dangerous levels of 110-115 degrees.
Minneapolis, Chicago, Milwaukee and Detroit are among the cities that tied or set new record highs on July Fourth, soaring above 100 degrees.
The mercury has soared to 100-degrees or higher for seven days in a row in St. Louis through July Fourth. If it hits 100 degrees through Friday, as expected, then it will be the second longest streak of 100-degree temperatures since 1936.
Highs are forecast to soar into the 90s in Detroit into the weekend. If the city manages to hit 90 degrees and higher through Saturday, as forecast, then the city will fall one day short of the longest streak of 90-degree temperatures ever recorded. The longest stretch of consecutive days at 90 degrees or higher for Detroit was 11 days set back in 1953.
Meanwhile, highs will continue to ramp up farther east across the mid-Atlantic through the rest of the week.
Philadelphia climbed back into the mid-90s on Independence Day with the renewed heat surge. Higher humidity will continue to make it feel more like 100 degrees during the afternoon through the end of the week.
No end of the heat is in sight for Washington, D.C., with highs expected to reach in the mid-90s straight through the rest of the week and weekend. Again, it will feel more like 100 degrees. At night, lows should be in the 70s, but high humidity will not allow for much relief from the brutal daytime heat.
The nation's capital has already recorded seven days in a row with a high of 90 degrees or higher through Wednesday. The peak of the current heat was a high of 104 degrees on Saturday.
Thousands of customers have no power or air conditioning from Indiana to Virginia, following last week's storms.
Dangerous Heat Persists
Tropical Storm Fred has formed off of the African Coast and will threaten the Cape Verde Islands early this week.
While Erika has weakened to a tropical rainstorm, Florida will still become the target of potentially flooding downpours this week.
A strong storm system moved into Washington on Saturday, delivering powerful winds that lead to widespread damage and power outages.
A push of summer heat and humidity will make its way into the Northeast this week.
While powerful Hurricane Ignacio is expected to pass north of Hawaii early this week, the island chain will not be able to escape all of the impacts.
The 2015 US Open Tennis championships begin Aug.31 and heat and humidity will return for to the Big Apple for the tournament's first week.
East Coast (1954)
Hurricane Carol hit with the single greatest property loss to date.
Raleigh, NC (1965)
46 degrees -- coldest ever in August.
Three inches of snow fell in parts of the state; record lows were set in 31 northeastern U.S. cities and towns.