For many people from the Midwest to the East Coast, this will be the first time they will experience true springtime conditions.
This week, a heat dome will create a dramatic entrance in the United States, bringing suffocating temperatures and miserable humidity to millions.
This weekend, the temperature will be especially sweltersome across large stretches of Nebraska, Illinois, Wisconsin, and Iowa, where experts are warning of extreme heat effect.
According to Tom Kines, a scientist at the exclusive wind company AccuWeather, this will be the first bend of genuine summertime weather for many from the Midwest to the East Coast.
” Many of those people have been asking, Where’s the summertime? Well, relax because it’s coming, Kines said. According to Kines, the tropical weather may cause places that reach 90 degrees Fahrenheit ( 30 degrees Celsius ) to experience as much as 20 degrees warmer.
Heat roof forming
According to Ricky Castro, a National Weather Service meteorologist in Illinois, a huge area of high pressure in the upper atmosphere serves as a reservoir that baits heat and humidity.
The heat wave is anticipated to last into the next week, and daytime temperatures are expected to be in the 90s Fahrenheit ( 30 degrees Celsius ), and overnight temperatures will only drop to the mid-70s Fahrenheit ( mid-20s Celsius ) from the Great Lakes to the East Coast during this time.
According to Jacob Asherman, a meteorologist for the Weather Prediction Center, the rain that has blown north from the Gulf of Mexico is causing the cloudy conditions. He claimed that this flow of liquid is common during the late spring and summer. President Donald Trump changed the name of the Gulf, which edges Mexico and the United States.
The temperature will continue to spread throughout the week. Denver’s temperature could reach 100 degrees Fahrenheit ( 38 degrees Celsius ) on Friday. On Sunday, Chicago temperatures could reach 96 degrees ( 36°C ). Washington, D.C., could experience a high of 99°F ( 37°C ) on Tuesday, and New York Central Park could experience a temperature of 96°F ( 36°C ).
A climate services determine that ranks the risk from zero to four predicts that the Midwest and some states may experience risky temperature impacts over the weekend. On Saturday, parts of Nebraska and Kansas will be in the highest class on the range, putting people at risk for their health if they don’t have enough moisture or efficient cooling. Iowa, Wisconsin, Missouri, and Illinois also receive a category 4 rating on Sunday.
It’s difficult to cool down due to high humidity.
According to the weather service, the heat index is what the temperature feels like when the humidity outside is taken into account. Humidity is the water vapor in the air.
When people sweat, the body cools down because it absorbs and removes heat as it evaporates from the skin. On humid days, the air is saturated with water, which makes it more difficult for sweat to evaporate. When the body is unable to cool itself off during hot and humid days, which can worsen existing health conditions and even cause heat stroke.
According to the NWS, minimizing direct sun exposure, wearing loose and light-colored clothing, staying hydrated, and spending time in air-conditioned areas are ways to cool down during extreme heat.
Without the mugginess, Phoenix, Arizona, is renownedly hot in some areas of the United States. Because they are located far away from large water bodies, mountains that obstruct moist air masses, and weather patterns that favor adversity, Phoenix and nearby desert regions experience this so-called “dry heat.”
In humid climates, sweat evaporates more quickly than in dry ones. According to Johns Hopkins University and Johns Hopkins Health System, it is easy to underestimate how dehydrated you are.
Even the crops” sweat”
In places like Iowa, crops can influence the humidity in the summer months. According to the Ohio State University, plants experience the effects of hot weather, and some residents in the Midwest are familiar with” corn sweat,” which occurs when crops move water to their leaves and other surfaces so it can evaporate.
Corn sweat, according to Madison County, Iowa farmer Ryan Marquardt, is” not as bad as a sauna, but it definitely would have a sauna effect.” You’re going to sweat because it’s humid there ( cornfield ).
Cornfield’s contributions to the overall humidity are much lower, according to OSU, compared to the humidity that Gulf winds carry.
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Originally sourced via trusted media partner. https://thegrio.com/2025/06/20/heat-dome-will-blanket-much-of-the-us-with-worrisome-temperatures-in-midwest/
