105-Degree Heat Index To Scorch Maryland: Heat Advisory Issued

MARYLAND — Portions of the Baltimore-DC region are expected to endure high temperatures throughout Wednesday, according to the National Weather Service. Record highs could be set for the third day in a row.

A heat advisory will be in effect from noon to 7 p.m., the NWS reported. Residents can expect temperatures that feel like 105 degrees, while other areas will see temperatures in the lower 100s.

Wednesday's temperature is expected to reach to around 99, with a peak heat index value up to 105 in the afternoon, according to the weather service.

Counties in Maryland affected by the heat advisory include Frederick, Carroll, Cecil, Baltimore, Prince George's, Anne Arundel, Charles, St. Marys, Calvert, Montgomery, Howard, and Harford.

Labor Day saw record-breaking temperatures set at all three of the D.C.-area’s airports. Reagan National Airport reached 98 degrees, while both Baltimore-Washington Airport and Dulles International Airport recorded highs of 99 degrees, WTOP reported. The old record for Reagan National was 96 degrees, set in 2019. The previous record at Dulles was 95 degrees and set in 1985.

A prolong period of temperatures well above and near-record will continue through Thursday, according to the NWS forecast. Highs could possibly reach the mid-90s to around 100, making it feel like 100 to 105 during the afternoon hours.

The region could see a slight relief from the high temperatures on Thursday. While the day will be mostly sunny, with a high of 95, there is a 30 percent chance of precipitation, according to NWS. This could bring showers and thunderstorms after 2 p.m., which will continue into the evening hours.

On Friday, the chance of precipitation climbs to 60 percent, making showers and possible thunderstorms likely after 2 p.m., according to the NWS forecast. Otherwise, the day is expected to be mostly sunny, with a high near 89.

The heat advisory includes these cities and localities: Frederick, Ballenger Creek, Eldersburg, Westminster, Reisterstown, Cockeysville, Elkton, Baltimore, Bowie, Suitland, Silver Hill, Clinton, College Park, Greenbelt, Laurel, Camp Springs, Glen Burnie, Annapolis, Severn, South Gate, Severna Park, Arnold, Odenton, St. Charles, Waldorf, Lexington Park, California, Chesapeake Beach, Huntingtown, Dunkirk, North Beach, Lusby, Prince Frederick, Germantown, Damascus, Bethesda, Rockville, Gaithersburg, Silver Spring, Lisbon, Columbia, Ellicott City, Jarrettsville, and Aberdeen,

The heat wave will continue through Wednesday and Thursday, according to the Accuweather forecast. Temperatures on are expected to reach 98 degrees on Wednesday, under mostly sunny skies.

With a 40 percent chance of rain predicted on Thursday, a thunderstorm is expected in the afternoon, with a high of 96 and a low of 68, according to Accuweather.

Prepare For High Temperatures: NWS

"Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles
under any circumstances.

"Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1."

5-Day Forecast For Maryland: NWS

Thursday
A chance of showers and thunderstorms after 2 pm. Mostly sunny, with a high near 92. Calm wind becoming south 5 to 9 mph in the afternoon. Chance of precipitation is 50%.

Thursday Night
A chance of showers and thunderstorms, mainly before 2 am. Mostly cloudy, with a low around 66. Southwest wind 5 to 9 mph becoming calm in the evening. Chance of precipitation is 40%.

Friday
A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 86. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 60%.

Friday Night
Showers likely and possibly a thunderstorm before 8 pm, then a chance of showers and thunderstorms between 8 pm and 2 am, then a chance of showers after 2 am. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.

Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 2 pm. Partly sunny, with a high near 82. Chance of precipitation is 70%.

Saturday Night
Showers likely and possibly a thunderstorm before 8 pm, then a chance of showers between 8 pm and 2 am. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.

Sunday
Showers likely and possibly a thunderstorm after 2 pm. Partly sunny, with a high near 79. Chance of precipitation is 60%.

Sunday Night
Showers likely and possibly a thunderstorm before 8 pm. Partly cloudy, with a low around 63. Chance of precipitation is 60%.

Monday
Mostly sunny, with a high near 83.

Monday Night
Partly cloudy, with a low around 62.

Tuesday
A chance of showers. Mostly sunny, with a high near 81. Chance of precipitation is 30%.