Sweltering Weather Continues With Heat Index Above 100: See NoVA Forecast

VIRGINIA — After a sweltering Fourth of July holiday weekend, the sweltering heat is not letting up around the Northern Virginia region.

The National Weather Service has issued a heat advisory Monday from noon to 8 p.m. The real-feel heat index could reach 105 degrees. A "spotty" thunderstorm is possible in the DC region in afternoon and evening.

The heat advisory applies to the District of Columbia, Fairfax County, Arlington County, Falls Church, Alexandria, Stafford County, Spotsylvania County, King George County, northwest, central and southeast Prince William County, Manassas, Manassas Park, Loudoun County, Fauquier County and other areas.

Hot temperatures combined with high humidity causes a risk of heat-related illnesses. The National Weather Service recommends drinking plenty of fluids, wearing lightweight and loose fitting clothing, staying in air conditioning, checking on relatives and neighbors, not leaving children and pets unattended in cars, and knowing the symptoms of heat exhaustion and heat stroke.

For outdoor work, the Occupational Safety and Health Administration recommends frequent rest breaks in shaded or air-conditioned areas. A person overcome by heat should be moved to a cool and shaded location. In the case of heat stroke, call 911.

Residents in need of air-conditioned relief can check with their locality for cooling center locations.

Northern Virginia residents will have to withstand the high heat for a bit longer. The Washington Post's Capital Weather Gang expects the heat index to be above 100 Monday through Wednesday. Chances of rain on Thursday and Friday could bring some relief to the area.

Here is the National Weather Service forecast at Reagan National Airport in the coming days:

Monday: Isolated showers and thunderstorms after 2 p.m. Partly sunny and hot, with a high near 98. Heat index values as high as 105. The chance of precipitation is 20 percent. At night, partly cloudy, with a low around 79.

Tuesday: A chance of showers and thunderstorms after 2 p.m. Mostly sunny and hot, with a high near 97. Heat index values as high as 105. At night, a chance of showers and thunderstorms, mainly before 8 p.m. Mostly cloudy, with a low around 80. The chance of precipitation is 30 percent.

Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 11 a.m. Partly sunny, with a high near 96. South wind 9 to 15 mph, with gusts as high as 21 mph. At night, a chance of showers and thunderstorms and mostly cloudy, with a low around 80. Chance of precipitation is 50 percent.

Thursday: A chance of showers, with thunderstorms also possible after 2 p.m. Partly sunny, with a high near 93. Chance of precipitation is 50 percent. At night, showers likely and possibly a thunderstorm before 8 p.m., then showers and thunderstorms likely, mainly between 8 p.m. and 2 a.m. Mostly cloudy, with a low around 77. Chance of precipitation is 60 percent.

Friday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8 a.m. Partly sunny, with a high near 87. Chance of precipitation is 70 percent. At night, a chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Chance of precipitation is 50 percent at night.