Hot, humid and stormy weather is on tap today.
Arlington County and much of the D.C. area is under a Heat Advisory, a Flood Watch and — as of 1:45 p.m. — a Severe Thunderstorm Watch today (Tuesday).
The watches were prompted by the possibility of strong storms and torrential rainfall later today, following a sweltering afternoon.
More, below, from the National Weather Service.
A severe thunderstorm watch has been issued for parts of CT, DE, DC, MD, NJ, NY, PA, VA until 9 PM EDT pic.twitter.com/tqjWJRJ0zy
— NWS Severe Tstorm (@NWSSevereTstorm) July 8, 2025
1002 AM EDT Tue Jul 8 2025
…HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING…
* WHAT…Heat index values up to 106 expected.
* WHERE…Portions of DC, central, northeast, northern, and southern Maryland, and central and northern Virginia.
* WHEN…Until 7 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.
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 hot and humid afternoon will lead to numerous thunderstorms developing which will move eastward through the evening. Storms will be capable of producing damaging wind gusts and heavy rain that may lead to flash flooding. pic.twitter.com/B99iPqPkmP
— NWS Baltimore-Washington (@NWS_BaltWash) July 8, 2025
959 AM EDT Tue Jul 8 2025
…FLOOD WATCH REMAINS IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH THIS EVENING…
* WHAT…Flash flooding caused by excessive rainfall continues to be possible. […]
* WHEN…From 2 PM EDT this afternoon through this evening.
* IMPACTS…Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas.
* ADDITIONAL DETAILS…
– Numerous showers and thunderstorms will move across the area this afternoon and evening. Rainfall rates of up to 2 inches per hour are possible, which may lead to scattered instances of flash flooding where the heavy rain persists the longest.
– Please visit www.weather.gov/safety/flood for flood safety and preparedness informationPRECAUTIONARY/PREPAREDNESS ACTIONS…
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Meteorologist Jackie Layer of DC News Now breaks down the local forecast specifically for ARLnow readers in the video below.
Catch Jackie’s forecasts weekdays on DC News Now/WDVM and DCW50.
