Note: The Heat Advisory has expired for the DC region. The most recent advisory issuances before the expiration are below.
A Heat Advisory remains in effect to 8 pm Thursday, July 17, 2025 including the following jurisdictions.
DISTRICT OF COLUMBIA.
MARYLAND: Cecil, southern Baltimore, Baltimore City, Prince George’s, Anne Arundel, Charles, St. Mary’s, Calvert, southeast Harford.
VIRGINIA: Fairfax, Arlington, Falls Church, Alexandria, Stafford, King George, central/southeast Prince William, Manassas, Manassas Park.
Excerpted from the National Weather Service:
…HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING…
WHAT…Heat index values around 105 expected.
WHERE…Portions of DC, central, northeast, northern, and southern Maryland, and central and northern Virginia.
WHEN…Until 8 PM EDT this evening.
IMPACTS…Hot temperatures and high humidity may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
A Heat Advisory remains in effect to 8 pm Thursday, July 17, 2025 including the following jurisdictions.
MARYLAND: Frederick, Carroll, northern Baltimore, Montgomery, Howard, northwest Harford.
VIRGINIA: Fauquier, Loudoun, northwest Prince William.
Excerpted from the National Weather Service:
…HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING…
WHAT…Heat index values around 105 expected.
WHERE…Portions of central, north central, and northern Maryland and northern Virginia.
WHEN…Until 8 PM EDT this evening.
IMPACTS…Hot temperatures and high humidity may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
A Heat Advisory remains in effect to 8 pm Thursday, July 17, 2025 including the following jurisdictions.
MARYLAND: Washington.
VIRGINIA: Frederick, Warren, Clarke.
WEST VIRGINIA: Morgan, Berkeley, Jefferson.
Excerpted from the National Weather Service:
…HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING…
WHAT…Heat index values around 100 expected.
WHERE…In Maryland, Washington County. In Virginia, Clarke, Frederick VA, and Warren Counties. In West Virginia, Berkeley, Jefferson, and Morgan Counties.
WHEN…Until 8 PM EDT this evening.
IMPACTS…Hot temperatures and high humidity may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
A Heat Advisory remains in effect to 8 pm Thursday, July 17, 2025 including the following jurisdictions.
MARYLAND: Kent, Queen Anne’s, Talbot, Caroline.
Excerpted from the National Weather Service:
…HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING…
WHAT…Heat index values up to 105.
WHERE…Portions of central and southern Delaware, northeast Maryland, and southern New Jersey.
WHEN…Until 8 PM EDT this evening.
IMPACTS…Hot temperatures and high humidity may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
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.
A Heat Advisory remains in effect to 8 pm Thursday, July 17, 2025 including the following jurisdictions.
MARYLAND: Dorchester, Wicomico, Somerset, Worcester.
VIRGINIA: Caroline, Westmoreland.
Excerpted from the National Weather Service:
…HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING…
WHAT…Heat index values of 105 to 109 degrees expected.
WHERE…Portions of southeast Maryland and central, east central, eastern, north central, south central, and southeast Virginia.
WHEN…Until 8 PM EDT this evening.
IMPACTS…Hot temperatures and high humidity may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.