The 2026 Potomac River Run Marathon has concluded.
Potomac River Run Marathon
Race complete
Carderock, MD, USA · May 2, 2026
Race Day Weather
48°at start
60° high
Breezy
Dry
Cool conditions, moderate wind
Runners will face a temperature starting at 49°F and peaking at 60°F. Winds will be from the NW at 14 mph, providing a slight headwind throughout. With humidity at 53%, hydration should be maintained, but no rain is expected, allowing for a focus on pacing without weather concerns.
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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 60°F and a low of 47°F with a 0% chance of rain.
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