Saturday, May 1, 2027Washington, DC
24th Annual Potomac River Run Marathon & Half
2 events
- MarathonMarathonRoad
- Half MarathonHalfRoad
Location
Typical race-day weatherGood weather · 74/100
- High / low
- 69° / 50°F
- 21° / 10°C
- Humidity
- 78%
- Dew point 52°F
- Chance of rain
- 41%
- Wind
- 9 mph
- Average
- Usually warm for a marathon: about 59°F while racing.
- Rain on about 41% of days around this date.
Averages for this area and time of year over the last 20 years, from NASA POWER data. Not a forecast.