The Boston Marathon could get a weather break Monday that runners have been waiting for. Forecasts call for cooler air and a wind pattern that may help speed the field along the 26.2-mile course.
Ideal conditions would mean temperatures in the 40s in Hopkinton at the start and low to mid-50s by the time runners reach Boylston Street in Boston. A brisk southwesterly wind would be another lift, and this year’s forecast points to an early northwest wind with speeds nudging above 15 mph for the 130th running on Monday, April 20.
That is the kind of setup that invites comparisons with 2011, when the Boston Marathon was regarded as one of the most ideal editions for long-distance running. A strong southwesterly wind helped push runners along the course that year, and Geoffrey Mutai of Kenya won in 2 hours, 3 minutes, 2 seconds — a mark that still stands as the elite men’s record 15 years later.
This year’s forecast is being shaped by a frontal system expected to move through the Boston area Sunday night, ending the unusual warmth and sending much cooler air down from Canada into Eastern Massachusetts. The change should leave race day looking far more favorable for runners than the weather that precedes it, even if the wind is expected to be less helpful than the 16 mph to 20 mph tailwind that aided the 2011 race.
That leaves the race with a familiar Boston Marathon twist: conditions may be close to ideal, but they are not quite the same as the year that still defines the modern benchmark. New records may be set, but time will tell. For more on the field, see Boston Marathon 2026: More than 30,000 runners set for April 20 race.






