Unsafe heat and humidity will continue through the weekend, Storm Center 7 Meteorologist Carrieann Marit said.
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The National Weather Service in Paducah has all of the southern Pennyrile region under a heat advisory until 8 p.m. Sunday.
The heat advisory is in effect for Fairfax, Prince William, Fauquier, Stafford, Arlington Fredericksburg and parts of Loudoun County. Highs will warm up a bit, into the upper 80s to mid 90s. According to the Weather Service, the highest July heat indexes will be across the Mississippi River valley, where heat index values will be more than 110 degrees Fahrenheit. The afternoon heat will give way to isolated storms. Any storms that develop could produce some locally heavy rainfall. The night will be dry with scattered clouds and temperatures falling into the 70s overnight.
Partly cloudy skies will follow into Sunday night, with the low around 69.
It baked a good portion of the Midwest this week with high temperatures in excess of 100-degrees.
Today’s weather will reach a high near 97, the National Weather Service said, with heat index values as high as 109.
On Monday, it will be party sunny with a high around 89 and a chance of showers and thunderstorms.
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Experts say the heat dome is a high pressure system that traps hot air underneath resulting in extremely hot and humid conditions.
