Sunday, December 13, 2026Potomac, MD
Founders Half Marathon
1 event
- Half MarathonHalfRoadStarts 9:00 AM
Location
Approximate, from the race's ZIP code.
Typical race-day weatherGood weather · 82/100
- High / low
- 44° / 30°F
- 7° / -1°C
- Humidity
- 82%
- Dew point 31°F
- Chance of rain
- 27%
- Wind
- 9 mph
- Average
- Usually cold for a half marathon: about 35°F while racing.
Averages for this area and time of year over the last 20 years, from NASA POWER data. Not a forecast.