Note: The Heat Advisory has been canceled for the DC region. The most recent advisory issuances before the cancellation are below.
  
 
 A Heat Advisory remains in effect to 8 pm Sunday, July 27, 2025 including the following jurisdictions.
DISTRICT OF COLUMBIA.
 MARYLAND: Prince George’s, Charles, St. Mary’s, Calvert.
 VIRGINIA: Albemarle, Greene, Madison, Orange, Culpeper, Fairfax, Arlington, Falls Church, Alexandria, Stafford, Spotsylvania, King George, southern Fauquier, central/southeast Prince William, Manassas, Manassas Park.
…HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING…
WHAT…Heat index values around 105 expected
WHERE…Portions of DC, central and southern Maryland, and central, northern, and northwest 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 is in effect from 11 am to 8 pm Sunday, July 27, 2025 including the following jurisdictions.
MARYLAND: Dorchester, Wicomico, Somerset, inland Worcester.
…HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING…
WHAT…Heat index values of 105 to 109.
WHERE…In Maryland, Dorchester, Inland Worcester, Somerset, and Wicomico Counties. In Virginia, Northampton and Accomack 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 Sunday, July 27, 2025 including the following jurisdictions.
VIRGINIA: Caroline, Westmoreland.
…HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING…
WHAT…Heat index values up to 108.
WHERE…Portions of central, east central, and north central 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.