Amtrak’s current service-alert page shows no New York–Washington disruption, although it still directs passengers to check the individual train before departure. Dulles is materially calmer than New York but not placid: the NWS forecast gives a 50% chance of showers, north winds of 14–18 mph and gusts to 28 mph today, easing only slightly tonight. Allow generous transfer time between Washington and IAD and recheck individual train status before departure.