In 30 days · Sun, Nov 8, 2026
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When
Sunday, November 8th, 2026
Where
Chesapeake and Ohio Canal Towpath, Potomac MD
Distances
Half · 5K · 10K
Typical weather
42–59°F · some rain risk
See last 10 years
On this date: rain 1 of the last 10 years
2025
53–69°F
rain
2024
51–70°F
dry
2023
44–62°F
dry
2022
46–58°F
dry
2021
43–64°F
dry
2020
46–72°F
dry
2019
33–44°F
dry
2018
44–55°F
dry
2017
40–50°F
dry
2016
40–67°F
dry
Best months to race in Maryland →
Race-day forecast says layers
42°F at the start.
Gloves, ear warmers, throwaway layers, hand warmers — delivered before race day.
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Course map
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