Heat will linger across many of the affected areas into the end of the week, but the extremity of the heat will begin to temper somewhat from midweek onward. Metropolitan areas often have a high density of buildings and roadways that are constructed with materials that are not quick to release heat and therefore do not cool down quickly at night. This phenomenon is especially pronounced in highly-urbanized areas subject to the urban heat island effect. “When the air temperatures remain at elevated levels as people go to sleep, additional strain to the heart can occur as the body tries to regulate the internal temperature.” “The overnight hours, when temperatures are expected to drop to the daily minimum, can become a secret danger to residents during a heat wave,” AccuWeather Meteorologist Alyssa Smithmyer said.
Through at least Wednesday, residents across the Midwest and portions of the East without access to air conditioning will struggle to cool off overnight. In addition to record-challenging temperatures during the daytime hours, temperatures will also remain elevated during the overnight hours for much of the week. Both cities will flirt with record high temperatures on Wednesday as temperatures top out upwards of 15 degrees above average for mid-June. The shift and ultimate eastward expansion of the heat Wednesday will put places like Cleveland and Pittsburgh fully in the mix to bake under the worst heat of the week. Much of the Plains will remain upwards of 10 degrees above normal by midweek.
Raleigh will also flirt with record temperatures through midweek.īy Wednesday, the core of the heat will slowly slide farther east, but relief will be limited for the Central states. Outside of the Midwest, Tuesday is also set to be generally the hottest day of the week for large portions of the Southeast.Ĭharlotte, North Carolina, is forecast to reach 101 F on Tuesday, which would beat the daily record of 99 F from 1984. Louis Lambert Airport has never been above 101 degrees this early into the calendar year and has only been 100 or higher a total of 4 days before June 14, with records going back to 1930. The heat wave is also coming unusually early in the season. “If so, this would match the total number of 100-degree days since 2018.” A high near 100 is also possible on Thursday. Louis is forecast to record high temperatures of 100 F or more from Monday to Wednesday,” Benz added. Since 2018, the city has recorded a total of only three days when the mercury hit 100 F or more, according to AccuWeather Meteorologist Matt Benz. Louis is a relative stranger to temperatures in the triple digits. Tuesday’s high temperature for the city could flirt with that triple-digit benchmark and could become one of the top two or three earliest readings of all time and the first reading in nearly a decade. If Chicago records a temperature of 100 F or more at all, it typically does not occur until the middle of July. Heat on Tuesday will sizzle across the entire greater Chicago metro, but areas closest to the Lake Michigan shoreline may end up a few degrees lower than areas farther inland.Īt Chicago O’Hare International Airport, one of the official weather reporting locations for the area, the high temperature is forecast to reach 95 F on Tuesday. High temperatures around 80 F are typical for both metros in mid-June, but the mercury in both cities will skyrocket to just shy of 100 F on Tuesday. High temperatures in both cities typically top out in the middle 80s F at this time of year, but on Monday, Wichita (high of 99 F) topped out within one degree of 100 F, while Lincoln topped the triple-digit mark with a high of 103 F.īy Tuesday, heat will peak in places like Chicago and Indianapolis. Into Monday evening, residents of Wichita, Kansas, and Lincoln, Nebraska, experienced the worst of the heat this push has to offer. Unseasonable heat began in earnest on Monday for many locations from the central Plains to the Midwest.
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