Potomac River Run Marathon
Race Day Weather
Cool start, warming trend ahead
Runners will face a temperature increase from 57°F at the start to 71°F by finish, with humidity averaging 60% and a dew point of 49°F. A light headwind at 8 mph may become gusty, reaching 22 mph. Runners should consider pacing conservatively early on and stay hydrated as temperatures rise.
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Race Info
The Potomac River Run Marathon and Half Marathon start and finish at Fletcher's Cove on the C&O Canal Towpath in Washington, D.C. The out-and-back course follows the Potomac River past a series of historic canal locks and is USATF certified as a Boston Marathon qualifier. The race is organized by the Safety and Health Foundation, a nonprofit that directs proceeds to charity projects including schools and a health clinic in Africa. It is one of three marathon and half marathon events the foundation holds each year as part of its Grand Prix series.
