Boston Marathon (UK)
Race Day Weather
Cool start — fast day potential
A cool 45°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temperatures rising to 55°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing. Moderate humidity at 70% is worth noting for effort level, especially in later miles.
Pace Calculator
Get forecast alerts for Boston Marathon (UK)
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Race Info
The Boston Marathon (UK) is an annual marathon held each April in Boston, Lincolnshire, England. The flat, certified course starts at Boston Market Place and finishes at Boston College, running through the town and out into the surrounding Lincolnshire countryside. It is a Boston Marathon qualifier, and race day also includes half marathon, 10K, and 5K races. The 2025 edition drew more than 2,100 marathon and half marathon finishers.