Runners head out at the start of the 116th Boston Marathon today. Temperatures are expected to climb into the mid-80s today in Boston. (Darren McCollester/GETTY IMAGES)

While the Boston Athletic Association has offered runners the chance to sit this one out, we’re curious if the runners in our readership have experienced similar raceday challenges. Tell us:

What’s the worst weather you have endured for a run? How did you cope?

Leave your running horror story in the comments, and click “Recommend” on other stories that grab your attention. We’ll highlight some of the best tales later today.

Capital Weather Gang: Forecasting the marathon

Early Lead: Heat causes runners, officials to adjust