Potomac River Run Marathon
Carderock, MD, USA · May 2, 2026
Race Day Weather
54°at start
71° high
Breezy
Dry
Cool start, warming trend ahead
Runners will face a temperature rise from 53°F at the start to a peak of 71°F. With an average humidity of 74% and a light SW wind at 10 mph, pacing adjustments may be necessary as temperatures climb. It’s advisable to start conservatively and hydrate frequently to combat the increasing warmth.
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FAQ
When is the 2026 Potomac River Run Marathon?
The 2026 Potomac River Run Marathon will be held on Saturday May 2, 2026.
Is the Potomac River Run Marathon a Boston Marathon Qualifier?
Yes, the Potomac River Run Marathon is an official Boston Marathon qualifier.
What will the weather be like for the 2026 Potomac River Run Marathon?
The forecast calls for a high of 71°F and a low of 51°F with a 23% chance of rain.
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