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Spring's Chill and Thrill: Boston Marathon Weather
Boston, MA, USAMonday, April 21, 2025
For those not at the marathon, there's always the Red Sox game at Fenway Park. The first pitch is at 11:10 a. m. , and the weather should be pleasant for a day at the ballpark. The rest of Southern New England can expect a mix of sun and clouds, with highs in the low 60s. The Cape and Islands will be a bit cooler, with highs in the low 50s.
Looking back at past marathons, the average high over the past 10 years has been 63 degrees. The hottest marathon was in 1905, with temperatures hitting 100 degrees. The coldest was in 2015, with a high of just 46 degrees. Rain has fallen on four of the past 10 marathons, and snow has been known to fall on race day, most recently in 1967.
The weather pattern has been active lately, but things should calm down for marathon day. A pocket of high pressure will keep things dry and comfortable. It's shaping up to be a great day for the Boston Marathon, with weather that's just right for running. So, whether you're a runner or a spectator, get ready to enjoy the spring weather and the excitement of the race.
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