The National Weather Service has issued an Extreme Heat Warning and Extreme Heat Watch for Alexandria and surrounding communities.
The Extreme Heat Warning is in effect from 11 a.m. to 9 p.m. on Monday (June 23). The Extreme Heat Watch will be in effect from Tuesday morning (June 24) through the evening.
For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 110 expected. For the Extreme Heat
Watch, dangerously hot conditions with heat index values up to 110 possible.
Extreme Heat Warning
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District of Columbia-Carroll-Northern Baltimore-Cecil-Southern
Baltimore-Prince Georges-Anne Arundel-Charles-Central and
Southeast Montgomery-Northwest Howard-Central and Southeast
Howard-Northwest Harford-Southeast Harford-Fairfax-
Arlington/Falls Church/Alexandria-Stafford-Southern Fauquier-
Northwest Prince William-Central and Southeast Prince
William/Manassas/Manassas Park-
221 PM EDT Sun Jun 22 2025…EXTREME HEAT WARNING IN EFFECT FROM 11 AM TO 9 PM EDT MONDAY…
…EXTREME HEAT WATCH IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY
EVENING…* WHAT…For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 110 expected. For the Extreme Heat
Watch, dangerously hot conditions with heat index values up to 110
possible.* WHERE…Washington DC, and portions of central and northern
Maryland, and northern Virginia.* WHEN…For the Extreme Heat Warning, from 11 AM to 9 PM EDT
Monday. For the Extreme Heat Watch, from Tuesday morning through
Tuesday evening.* IMPACTS…Heat related illnesses increase significantly during
extreme heat and high humidity events.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.Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

Extreme Heat Watch
…EXTREME HEAT WARNING IN EFFECT FROM 11 AM TO 9 PM EDT MONDAY…
…EXTREME HEAT WATCH IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY
EVENING…* WHAT…For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 110 expected. For the Extreme Heat
Watch, dangerously hot conditions with heat index values up to 110
possible.* WHERE…Washington DC, and portions of central and northern
Maryland, and northern Virginia.* WHEN…For the Extreme Heat Warning, from 11 AM to 9 PM EDT
Monday. For the Extreme Heat Watch, from Tuesday morning through
Tuesday evening.* IMPACTS…Heat related illnesses increase significantly during
extreme heat and high humidity events.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.Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.