Potomac River Run Marathon
Race Day Weather
Mild start, warm finish ahead
Runners will face a temperature rise from 57°F at the start to 66°F by the finish, with humidity averaging 60%. Winds will be light, around 8 mph, with some gusts, but overall not a significant factor. As temperatures climb into the late laps, it's advisable to adjust pacing and stay hydrated to combat the warming conditions.
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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.
