Boston Marathon looks cool for runners

Boston Marathon runners are now looking at a cold start and a cool race day on Monday, April 20, with conditions that local forecasters say should favor distance running. (wbur.org) WBUR reported that temperatures at the starting line in Hopkinton are expected to be in the mid-30s when runners gather Monday morning, with clear skies and wind likely to be the main complication. The same forecast said the setup is “brisk enough to be favorable for distance running,” even if it will feel colder for people standing still. (wbur.org) The race is the 130th Boston Marathon, scheduled for Patriots’ Day, Monday, April 20, 2026, and the Boston Athletic Association said 32,494 participants are entered, with 30,000 expected to run. The field includes entrants from 137 countries, all 50 states, and 4,698 Massachusetts residents. (baa.org) Boston Athletic Association organizers also changed the start format this year from four waves to six. The group said the larger number of smaller waves is meant to improve bus loading, movement through Athletes’ Village, and runner flow across the course while still getting everyone over the start before 11:30 a.m. (baa.org) That weather shift stands out because Boston Marathon conditions can shape the race as much as the hills do. WBUR pointed to the 1976 “Run for the Hoses,” when temperatures reached the 80s, and the 2018 race, when rain, wind, and temperatures in the 30s and 40s left some runners dealing with hypothermia. (wbur.org) The course itself still adds the usual strain even in cooler air. Boston.com noted that runners go 26.2 miles from Hopkinton through Ashland, Framingham, Natick, Wellesley, Newton, Brookline, and into Boston, including the Newton Hills before the finish on Boylston Street. (boston.com) For runners, cooler temperatures usually make pacing easier because the body sheds heat more efficiently over a long effort. For spectators, the same forecast means layers, especially early in the day and in exposed spots along the route. (wbur.org) Race weekend in Boston is also a business and fan event, not just a race. FloTrack’s event guide said Saucony plans a pop-up opening party at 939 Boylston Street on Friday, a preview show on Saturday, a cheer station near 1663 Commonwealth Avenue on race day, and free medal engraving at Marathon Sports on Boylston Street on Tuesday. (flotrack.org) So the latest picture for Marathon Monday is straightforward: a big field, a new six-wave start, and a chilly forecast that looks better for 26.2 miles than for standing on the curb. (baa.org) (wbur.org)