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Race Overview
The Potomac River Run Marathon and Half Marathon start and finish at Fletcher's Cove on the C&O Canal Towpath in Washington, D.C. The out-and-back course follows the Potomac River past a series of historic canal locks and is USATF certified as a Boston Marathon qualifier. The race is organized by the Safety and Health Foundation, a nonprofit that directs proceeds to charity projects including schools and a health clinic in Africa. It is one of three marathon and half marathon events the foundation holds each year as part of its Grand Prix series.
WikipediaFAQ
When is the 2027 Potomac River Run Marathon?
The 2027 Potomac River Run Marathon will be held on Saturday May 1, 2027.
Is the Potomac River Run Marathon a Boston Marathon Qualfier?
Yes, the Potomac River Run Marathon is an official Boston Marathon qualifier.
Potomac River Run Marathon Course Map
Loading Course Map...
Potomac River Run Marathon Weather History
Potomac River Run Marathon Weather Averages
Average Temp: 62°, Average Low: 55°, Average High: 69°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 58° | 60° | 62° | 64° | 65° | 67° | 68° |
| Feel | 57° | 60° | 62° | 64° | 65° | 67° | 68° |
| Rain | - | - | - | - | - | - | - |
| Wind | 8mph | 10mph | 10mph | 10mph | 10mph | 9mph | 10mph |
| Dew | 49° | 48° | 48° | 48° | 48° | 48° | 48° |
| RunScore |  | | | |  | | |
Potomac River Run Marathon 2026
May 2, 2026
Partly cloudy throughout the day with early morning rain.
Low: 49°, High: 62°, Light Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 49° | 50° | 52° | 56° | 56° | 56° | 60° |
| Feel | 44° | 50° | 52° | 56° | 56° | 56° | 60° |
| Rain | - | - | - | - | - | - | - |
| Wind | 14mph | 12mph | 11mph | 6mph | 8mph | 5mph | 8mph |
| Dew | 36° | 37° | 35° | 34° | 33° | 33° | 30° |
| RunScore | | | |  | | | |
Potomac River Run Marathon 2025
May 3, 2025
Partly cloudy throughout the day.
Low: 68°, High: 83°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 71° | 73° | 74° | 75° | 79° | 81° | 80° |
| Feel | 71° | 73° | 74° | 75° | 79° | 82° | 80° |
| Rain | - | - | - | - | - | - | - |
| Wind | 10mph | 12mph | 10mph | 11mph | 13mph | 10mph | 15mph |
| Dew | 61° | 61° | 61° | 62° | 62° | 63° | 63° |
| RunScore | | | | |  | |  |
Potomac River Run Marathon 2024
May 4, 2024
Cloudy skies throughout the day with a chance of rain throughout the day.
Low: 53°, High: 55°, Heavy Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp |  54° |  54° | 54° | 54° | 55° | 55° | 55° |
| Feel | 54° | 54° | 54° | 54° | 55° | 55° | 55° |
| Rain | light | light | - | light | - | - | - |
| Wind | 7mph | 8mph | 7mph | 6mph | 7mph | 9mph | 7mph |
| Dew | 51° | 51° | 51° | 51° | 52° | 52° | 52° |
| RunScore | | | | | | | |
Potomac River Run Marathon 2023
May 6, 2023
Partly cloudy throughout the day.
Low: 49°, High: 74°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 55° | 59° | 63° | 66° | 68° | 71° | 72° |
| Feel | 55° | 59° | 63° | 66° | 68° | 71° | 72° |
| Rain | - | - | - | - | - | - | - |
| Wind | 4mph | 3mph | 4mph | 3mph | 5mph | 6mph | 8mph |
| Dew | 46° | 47° | 46° | 41° | 44° | 43° | 44° |
| RunScore | | | | | | | |
Potomac River Run Marathon 2022
May 1, 2022
Cloudy skies throughout the day with afternoon rain.
Low: 52°, High: 66°, Moderate Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 56° | 58° | 59° | 61° | 64° | 65° | 66° |
| Feel | 56° | 58° | 59° | 61° | 64° | 65° | 66° |
| Rain | - | - | - | - | - | - | - |
| Wind | 3mph | 7mph | 6mph | 5mph | 7mph | 9mph | 0mph |
| Dew | 47° | 47° | 48° | 49° | 48° | 48° | 49° |
| RunScore | | | | | | | |
Potomac River Run Marathon 2021
May 2, 2021
Partly cloudy throughout the day.
Low: 54°, High: 83°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 60° | 63° | 65° | 70° | 75° | 80° | 81° |
| Feel | 60° | 63° | 65° | 70° | 75° | 80° | 80° |
| Rain | - | - | - | - | - | - | - |
| Wind | 8mph | 9mph | 10mph | 11mph | 11mph | 11mph | 14mph |
| Dew | 42° | 42° | 45° | 48° | 50° | 48° | 51° |
| RunScore | | | | | | | |
Potomac River Run Marathon 2019
May 5, 2019
Cloudy skies throughout the day with a chance of rain throughout the day.
Low: 59°, High: 68°, Heavy Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 66° | 66° | 66° | 65° | 66° | 65° | 64° |
| Feel | 66° | 66° | 66° | 65° | 66° | 65° | 64° |
| Rain | light | light | light | light | - | light | light |
| Wind | 1mph | 8mph | 8mph | 9mph | 9mph | 9mph | 15mph |
| Dew | 64° | 64° | 63° | 62° | 63° | 63° | 62° |
| RunScore | | | | | | | |
Potomac River Run Marathon 2018
May 6, 2018
Cloudy skies throughout the day.
Low: 59°, High: 70°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 61° | 62° | 63° | 65° | 67° | 69° | 70° |
| Feel | 61° | 62° | 63° | 65° | 67° | 69° | 70° |
| Rain | - | - | - | - | - | - | - |
| Wind | 6mph | 10mph | 6mph | 7mph | 1mph | 5mph | 10mph |
| Dew | 53° | 54° | 54° | 54° | 54° | 55° | 56° |
| RunScore | | | | | | | |
Potomac River Run Marathon 2017
May 7, 2017
Partly cloudy throughout the day.
Low: 46°, High: 64°, Light Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 52° | 54° | 55° | 58° | 59° | 58° | 62° |
| Feel | 52° | 54° | 55° | 58° | 59° | 58° | 62° |
| Rain | - | light | - | - | - | - | - |
| Wind | 11mph | 18mph | 13mph | 17mph | 22mph | 15mph | 15mph |
| Dew | 40° | 39° | 38° | 39° | 38° | 37° | 38° |
| RunScore | | | | | | | |
Potomac River Run Marathon 2016
May 1, 2016
Cloudy skies throughout the day with a chance of rain throughout the day.
Low: 52°, High: 59°, Heavy Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 53° | 53° | 54° | 54° | 56° | 56° | 57° |
| Feel | 53° | 53° | 54° | 54° | 56° | 56° | 57° |
| Rain | light | light | light | light | light | light | - |
| Wind | 8mph | 9mph | 8mph | 8mph | 10mph | 8mph | 6mph |
| Dew | 51° | 51° | 52° | 52° | 53° | 53° | 54° |
| RunScore | | | | | | | |
Potomac River Run Marathon 2015
May 3, 2015
Partly cloudy throughout the day.
Low: 55°, High: 83°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 61° | 65° | 73° | 76° | 77° | 78° | 81° |
| Feel | 61° | 65° | 73° | 76° | 77° | 78° | 80° |
| Rain | - | - | - | - | - | - | - |
| Wind | 1mph | 1mph | 9mph | 6mph | 4mph | 4mph | 3mph |
| Dew | 48° | 48° | 44° | 44° | 41° | 44° | 42° |
| RunScore | | | | | | | |
Potomac River Run Marathon 2014
May 4, 2014
Becoming cloudy in the afternoon.
Low: 50°, High: 76°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp |  57° | 63° | 68° | 71° | 70° | 73° | 75° |
| Feel | 57° | 63° | 68° | 71° | 70° | 73° | 75° |
| Rain | - | - | - | - | - | - | - |
| Wind | 7mph | 8mph | 12mph | 13mph | 11mph | 14mph | 17mph |
| Dew | 40° | 40° | 38° | 36° | 37° | 40° | 39° |
| RunScore | | | | | | | |
Potomac River Run Marathon 2013
May 5, 2013
Partly cloudy throughout the day.
Low: 46°, High: 62°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 49° | 50° | 51° | 53° | 56° | 57° | 60° |
| Feel | 44° | 45° | 51° | 53° | 56° | 57° | 60° |
| Rain | - | - | - | - | - | - | - |
| Wind | 16mph | 10mph | 13mph | 11mph | 11mph | 8mph | 4mph |
| Dew | 39° | 38° | 38° | 39° | 39° | 39° | 40° |
| RunScore | | | | | | | |
Potomac River Run Marathon 2012
May 6, 2012
Cloudy skies throughout the day.
Low: 60°, High: 70°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 60° | 62° | 63° | 65° | 67° | 68° | 68° |
| Feel | 60° | 62° | 63° | 65° | 67° | 68° | 68° |
| Rain | - | - | - | - | - | - | - |
| Wind | 5mph | 6mph | 2mph | 4mph | 4mph | 3mph | 3mph |
| Dew | 57° | 57° | 57° | 57° | 57° | 57° | 57° |
| RunScore | | | | | | | |
Potomac River Run Marathon 2011
May 1, 2011
Partly cloudy throughout the day.
Low: 49°, High: 61°, Light Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 53° | 55° | 57° | 57° | 58° | 60° | 61° |
| Feel | 53° | 55° | 57° | 57° | 58° | 60° | 61° |
| Rain | - | - | - | - | light | - | - |
| Wind | 5mph | 5mph | 6mph | 6mph | 4mph | 6mph | 8mph |
| Dew | 47° | 47° | 48° | 46° | 49° | 48° | 46° |
| RunScore | | | | | | | |
Potomac River Run Marathon 2010
May 2, 2010
Partly cloudy throughout the day.
Low: 71°, High: 86°, Light Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 73° | 76° | 79° | 81° | 82° | 83° | 84° |
| Feel | 73° | 76° | 79° | 84° | 85° | 88° | 89° |
| Rain | - | - | - | - | - | - | - |
| Wind | 6mph | 9mph | 11mph | 9mph | 11mph | 10mph | 12mph |
| Dew | 66° | 68° | 69° | 69° | 69° | 70° | 70° |
| RunScore | | | | | | | |
Potomac River Run Marathon 2009
May 3, 2009
Cloudy skies throughout the day with a chance of rain throughout the day.
Low: 56°, High: 61°, Heavy Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 59° | 60° | 59° | 59° | 58° | 58° | 57° |
| Feel | 59° | 60° | 59° | 59° | 58° | 58° | 57° |
| Rain | - | - | light | light | moderate | light | light |
| Wind | 1mph | 1mph | 3mph | 6mph | 9mph | 8mph | 11mph |
| Dew | 57° | 57° | 58° | 58° | 57° | 55° | 55° |
| RunScore | | | | | | | |
Potomac River Run Marathon 2008
May 4, 2008
Clearing in the afternoon.
Low: 59°, High: 73°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 63° | 66° | 67° | 69° | 69° | 71° | 71° |
| Feel | 63° | 66° | 67° | 69° | 69° | 71° | 71° |
| Rain | - | - | - | - | - | - | - |
| Wind | 5mph | 15mph | 14mph | 15mph | 14mph | 11mph | 12mph |
| Dew | 57° | 53° | 50° | 46° | 46° | 47° | 47° |
| RunScore | | | | | | | |
Potomac River Run Marathon 2007
May 6, 2007
Partly cloudy throughout the day.
Low: 50°, High: 62°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 52° | 54° | 56° | 57° | 58° | 60° | 62° |
| Feel | 52° | 54° | 56° | 57° | 58° | 60° | 62° |
| Rain | - | - | - | - | - | - | - |
| Wind | 22mph | 24mph | 19mph | 19mph | 19mph | 16mph | 21mph |
| Dew | 25° | 25° | 23° | 26° | 25° | 28° | 29° |
| RunScore | | | | | | | |
Potomac River Run Marathon 2006
May 7, 2006
Partly cloudy throughout the day with late afternoon rain.
Low: 50°, High: 66°, Moderate Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 54° | 56° | 58° | 60° | 62° | 63° | 66° |
| Feel | 54° | 56° | 58° | 60° | 62° | 63° | 66° |
| Rain | light | - | - | - | - | - | - |
| Wind | 14mph | 9mph | 9mph | 8mph | 10mph | 7mph | 8mph |
| Dew | 37° | 36° | 37° | 37° | 35° | 32° | 32° |
| RunScore | | | | | | | |
Potomac River Run Marathon 2005
May 1, 2005
Partly cloudy throughout the day with rain clearing later.
Low: 51°, High: 64°, Moderate Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 51° | 52° | 53° | 57° | 60° | 62° | 62° |
| Feel | 51° | 52° | 53° | 57° | 60° | 62° | 62° |
| Rain | light | - | - | - | - | - | - |
| Wind | 11mph | 16mph | 19mph | 16mph | 18mph | 19mph | 16mph |
| Dew | 43° | 40° | 39° | 38° | 39° | 36° | 34° |
| RunScore | | | | | | | |
Potomac River Run Marathon 2004
May 2, 2004
Cloudy skies throughout the day with rain.
Low: 63°, High: 80°, Heavy Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 66° | 67° | 69° | 72° | 75° | 76° | 79° |
| Feel | 66° | 67° | 69° | 72° | 75° | 76° | 79° |
| Rain | - | - | - | - | - | - | - |
| Wind | 10mph | 11mph | 13mph | 14mph | 14mph | 12mph | 19mph |
| Dew | 65° | 65° | 66° | 66° | 66° | 66° | 66° |
| RunScore | | | | | | | |