Potomac River Run Marathon
Carderock, MD, USA · May 2, 2026
Race Day Weather
46°at start
57° high
Breezy
Dry
Cool start, mild finish
Runners will face temperatures starting at 47°F and rising to 56°F, with an average humidity of 60% and a dew point of 38°F. Winds will be light, from the NW at 8 mph, with gusts up to 16 mph. With cool conditions, runners should maintain their pace and stay hydrated, but remain aware of potential light rain.
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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 58°F and a low of 46°F with a 37% chance of rain.
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