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.

Road closures for the marathon and for the Patriots' Day Parade on Monday, April 21 will be extensive. The City of Boston encourages spectators not to drive personal vehicles into the city and instead take advantage of Bluebikes rentals or public transit, with details on the MBTA website.

The 129th Boston Marathon will take place on Patriots' Day and span through eight towns and cities in Massachusetts, starting at Hopkinton and ending in Boston.