Rock ‘n’ Roll D.C. Marathon 2015 weather forecast


Saturday, March 14 – 7:30am  –  Washington, D.C.

Mostly Cloudy, Areas of Rain Likely (100%)

High: 63   Low: 44 

44 48 53 57 61

Friday Update

Forecast Grade: C

Confidence Level: 80%

Race Website | Local Radar | Current Conditions | Pace Chart | Philosophy

So much for the forecast where runners won’t see much rain… Below is a look at the simulated reflectivity around 7am, showing the heaviest rainfall still north of the region, but rain will still be likely in D.C. and will continue to be likely throughout the race.

Rainfall totals during the race alone may accumulate over a quarter of an inch and the storm total by that time may be approaching an inch. If that really occurs be ready for puddles on the course and for some very wet shoes by the end of the race!

0Z 4km NAM Simulated Reflectivity for 7am Saturday (Courtesy: WeatherBell Models)

0Z 4km NAM Simulated Reflectivity for 7am Saturday (Courtesy: WeatherBell Models)

Temperatures at least still look comfortable with lows in the mid 40s prior to the start, reaching the upper 40s by the time the race gets underway. It should reach the 50 degree mark by 9am and upper 50s by Noon. Highs should top out in the lower 60s. Winds should be light.


Shorts and a t-shirt will be good for the race. You’ll definitely want either some rain gear or a trash bag. If you go with the rain gear, a light jacket might be the best but be prepared to want to shed it later in the race. You may also want to bring along some dry clothes for after the race if you can. Good luck out there and don’t forget your body glide!