Old Colony Marathon
Westfield, MA, USA · May 29, 2026
Race Day Weather
57°at start
73° high
Light
Dry
Warming trend, moderate humidity
Runners will face a temperature rise from 56°F at the start to 72°F by the finish, with humidity averaging 69% and a dew point of 53°F. Winds will be light, blowing from the ESE at 6 mph with gusts up to 17 mph. Runners should consider starting conservatively to manage the warming conditions and adjust hydration frequency accordingly.
Race day forecast available in 3 days
Pre-raceRace windowPost-race
Get forecast alerts for Old Colony Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
FAQ
When is the 2026 Old Colony Marathon?
The 2026 Old Colony Marathon will be held on Friday May 29, 2026.
Is the Old Colony Marathon a Boston Marathon Qualifier?
Yes, the Old Colony Marathon is an official Boston Marathon qualifier.
What will the weather be like for the 2026 Old Colony Marathon?
The forecast calls for a high of 75°F and a low of 55°F with a 10% chance of rain.
More MA Races
Harpoon 5 Miler
2026-05-16 · Boston, MA, USA
B.A.A. 10K
2026-06-21 · Boston, MA, USA
Steel Rail Marathon & Half
2026-05-17 · Adams, MA, USA
Boston's Run To Remember Half Marathon
2026-05-24 · Boston, MA, USA
Falmouth Road Race
2026-08-16 · Falmouth, MA, USA
New England Green River Marathon
2026-08-23 · Greenfield, MA, USA