High heat combined with high humidity has led to a Heat Advisory for Alexandria and other parts of the D.C. region Thursday.
The National Weather Service issued the advisory from 11 a.m. to 8 p.m. for areas around the Interstate 95 corridor in Northern Virginia, D.C. and parts of Maryland. The heat index, a real-feel estimate due to the temperature and humidity, could reach up to 105 degrees.
The City of Alexandria said the extreme heat poses a risk especially for older adults, children and people with medical conditions or without air conditioning. Alexandria recreation centers and libraries are open as cooling centers. DASH Bus is also preparing to offer mobile cooling centers if needed.
During the heat advisory, the city recommends staying hydrated, remaining in air conditioned spaces when possible, limiting outdoor activities, checking on vulnerable neighbors, family and friends, recognizing signs of heat-related illness, and keeping pets cool.
Storms could be in the mix later in the day. According to Capital Weather, strong storms are possible in the evening after 5 p.m. Forecasters expect temperatures in the 90s and heat index of 105 to return Friday.
Strong to severe thunderstorms remain possible today and Friday amid a hot, humid, and unstable atmosphere. Heavy rain, gusty winds, and isolated hail are possible during the afternoon & evening hours. Additionally, heat indices of 100º to 105º F are possible. Drier Saturday. pic.twitter.com/LVji7SdFfw
— NWS Baltimore-Washington (@NWS_BaltWash) June 11, 2026
More from the National Weather Service:
Heat Advisory issued June 11 at 2:24AM EDT by NWS Baltimore MD/Washington DC
HEAT ADVISORY IN EFFECT FROM 11 A.M. TO 8 P.M. EDT THURSDAY.
* WHAT…Heat index values up to 105 expected.
* WHERE…Areas near and east of the Interstate 95 corridor from northeast to southern Maryland and the northern neck of Virginia, including Baltimore MD and Washington DC.
* WHEN…From 11 AM this morning to 8 PM EDT this evening.
* IMPACTS…Hot temperatures and high humidity may cause heat illnesses.
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! In cases of heat stroke, call 9 1 1.
