Race Day Weather
56°
72° high
Breezy
Dry
Cool start, warming trend ahead
Runners will face a temperature rise from 57°F at the start to 72°F by the finish, with an average humidity of 62% and a dew point of 50°F. Wind will blow from the SSW at 10 mph with gusts up to 28 mph, providing a variable challenge. Adjust pace conservatively as temperatures climb, especially in the later stages.
Race day forecast available in 10 days
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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 72°F and a low of 56°F with a 0% chance of rain.
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