The Boston Marathon is held in any kind of weather and that makes the forecast for runners and spectators extremely important. Marathon Monday is uniquely Boston. You've got the most elite runners from around the world racing to the finish line on Boylston St while the crowd roars at Fenway Park.

The Marathon forecast is calling for mostly sunny skies with highs likely reaching the upper 50s or 60 along the course. There's a slight chance for a shower as marathoners wrap up for the day.

StormTeam 5's forecast is tracking the conditions for the big race. Here's what athletes and spectators will want to know.