Annandale, Virginia – Thunderstorms packing torrential rain could bring flash flooding to Annandale by 2 p.m. Tuesday, triggering a Flood Watch across northern Virginia.
According to the National Weather Service, a band of slow-moving storms is expected to sweep across Fairfax County and surrounding areas this afternoon into Tuesday night. Some storms may produce up to 2 inches of rain in under an hour, with isolated totals near 5 inches. Affected roads could include Route 236 (Little River Turnpike), Braddock Road, and Columbia Pike, which are prone to ponding and sudden washouts.
Residents should avoid low-lying areas, charge devices, and postpone non-essential travel until storms pass.
The flood threat will remain elevated through Tuesday night as thunderstorms continue. Flash flooding is most likely between 3 p.m. and 9 p.m. across central Fairfax and nearby areas.
By Wednesday, the worst should clear out, though scattered showers could linger through the day.
☀️ Five-Day Forecast for Annandale, VA
Wednesday (July 2):
High 84°F — Showers likely early, then clearing by afternoon. North winds 3–6 mph.
Thursday (July 3):
High 88°F — Sunny and dry. Perfect for outdoor plans and early weekend travelers.
Friday – Independence Day (July 4):
High 87°F — Sunny skies and low humidity expected. Great grilling and parade weather.
Saturday (July 5):
High 91°F — Mostly sunny with rising humidity. Stay hydrated during holiday events.
Sunday (July 6):
High 93°F — Hot and humid. Afternoon heat index may top 95°F. Limit time outdoors.