Chilly, Breezy Marathon Monday Forecast

Light rain possible as runners and fans brave below-average temperatures.

Apr. 20, 2026 at 9:26am

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A sweeping, atmospheric landscape painting in muted tones of gray and blue, depicting the Boston skyline in the distance obscured by heavy fog and rain clouds. In the foreground, a lone runner battles the elements, their figure dwarfed by the overwhelming scale of the natural world.The iconic Boston Marathon faces chilly, breezy conditions that could challenge runners and spectators alike.Boston Today

The 130th Boston Marathon is set to take place on a chilly and breezy Patriots' Day, with temperatures in the 30s at the 9 a.m. start time in Hopkinton. Runners will benefit from a tailwind for much of the 26.2-mile course, but clouds are expected to develop by the early afternoon, bringing the chance of light showers. Spectators at Fenway Park for the Red Sox game may also have to contend with some rain, especially later in the day.

Why it matters

The Boston Marathon is a beloved annual tradition that draws thousands of runners and spectators to the city. The weather conditions can have a significant impact on the race, both for the athletes and the fans. This year's forecast of below-average temperatures and potential rain showers could affect the overall experience and challenge the runners.

The details

Temperatures at the 9 a.m. start time in Hopkinton are expected to be in the 30s, with a breezy wind that will make it feel even colder. Runners will be 'gifted' a tailwind for much of the course, but by the early afternoon, clouds are expected to develop, bringing the chance of light showers across the region. Spectators at Fenway Park for the Red Sox game may also have to deal with some light rain, especially in the later innings.

  • The Boston Marathon starts at 9 a.m. in Hopkinton.
  • Temperatures will be in the 30s at the start of the race.
  • Clouds are expected to develop by the early afternoon, bringing the chance of light showers.
  • Highs on Patriots' Day will only reach the upper 40s, about 10 degrees below average.
  • Frost is expected Tuesday morning, with highs again in the mid to upper 40s.

The players

Boston Marathon

An annual 26.2-mile running event that takes place in the Boston metropolitan area on Patriots' Day, the third Monday of April.

Boston Red Sox

A professional baseball team that plays in the American League East division of Major League Baseball. Their home stadium is Fenway Park, located in Boston.

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The takeaway

The chilly, breezy, and potentially rainy weather conditions for this year's Boston Marathon could present challenges for both the runners and the spectators. Runners will need to dress appropriately to stay warm, while fans may need to bring extra layers and rain gear to enjoy the event. Despite the less-than-ideal forecast, the Boston Marathon remains a beloved tradition that brings the community together.