Potomac River Run Marathon
Race Day Weather
Cool start, gradual warm-up
Runners will face temperatures starting at 57°F and rising to 66°F by late laps, with a light SSW wind at 8 mph. Humidity will be moderate at 60%, prompting runners to stay hydrated and consider pace adjustments as the race progresses. With a slight chance of rain, a light throwaway layer may be useful before the gun, but precipitation is unlikely to impact the race.
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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.
