Extreme Heat Warning Issued for DC, Maryland, and Virginia
The National Weather Service (NWS) has issued an Extreme Heat Warning for the District of Columbia and portions of Maryland and Virginia. The warning is in effect for July 3, 2026, from 10 AM EDT to 8 PM EDT, with dangerously hot conditions and heat index values up to 112 expected.
An Extreme Heat Warning has been issued by the NWS Baltimore MD/Washington DC office, effective from 10 AM EDT until 8 PM EDT on July 3, 2026. This warning covers the District of Columbia, along with portions of central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia.
Dangerously hot conditions are expected, with heat index values potentially reaching up to 112. Such extreme heat and high humidity events significantly increase the risk of heat-related illnesses.
The warning applies to the District of Columbia, and the Maryland counties of Frederick, Carroll, Northern Baltimore, Cecil, Southern Baltimore, Prince Georges, Anne Arundel, Charles, St. Marys, Calvert, Northwest Montgomery, Central and Southeast Montgomery, Northwest Howard, Central and Southeast Howard, Northwest Harford, and Southeast Harford. In Virginia, the Albemarle area is also included in this warning.