The 2026 Old Colony Marathon has concluded.

Old Colony Marathon

Race complete
Westfield, MA, USA · May 29, 2026
partly-cloudy-day55°·72° high·Windy·Dry
8
Weather
Course
FAQ
History

Race Day Weather

partly-cloudy-day
55°at start
72° high
Windy
Dry

Cool start, warming trend

Runners will face a temperature rise from 55°F at the start to a peak of 72°F. Winds will be from the WSW at 18 mph, gusting to 27 mph, creating a headwind throughout. With humidity at 51%, runners should consider adjusting their pace as temperatures increase and stay hydrated throughout the race.

clear-night8
partly-cloudy-night9
partly-cloudy-day9
partly-cloudy-day9
clear-day9
clear-day9
clear-day8
partly-cloudy-day6
partly-cloudy-day8
partly-cloudy-day6
partly-cloudy-day8

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.

Race Info

Website
Area Map

Course Map

Course Map Unavailable

We don't have course map data for Old Colony Marathon yet. If you have a GPX file (or other format) for this race, we'd love to add it!

FAQ

Ask a Question about the Old Colony Marathon

Racecast Concierge (free during beta)

Ask a question about the Old Colony Marathon and we'll do the hard part and find the answer for you within 48 hours.

By using Racecast Concierge, you agree to receive email alerts pertaining to the Old Colony Marathon and general racecast.io updates.

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 72°F and a low of 49°F with a 0% chance of rain.

Historical Weather

Based on 2 years of data
Avg Temp
77°F
L:52° H:77°
RunScore
7
Conditions
Rain Freq
0%
0 of 2 yrs
Wind11mph
Dew48°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore

2025 Old Colony Marathon

Clear conditions throughout the day.

2025
clear-day
50°/76°-
8

2024 Old Colony Marathon

Partly cloudy throughout the day.

2024
cloudy
53°/77°-
8

More MA Races

B.A.A. 10K
2026-06-21 · Boston, MA, USA
Falmouth Road Race
2026-08-16 · Falmouth, MA, USA
New England Green River Marathon
2026-08-23 · Greenfield, MA, USA
Beantown Marathon
2026-09-06 · Hingham, MA, USA
Cape Cod Marathon
2026-10-11 · Falmouth, MA, USA
Baystate Marathon
2026-10-18 · Lowell, MA, USA
Free guidesMarathon Fueling Guide·Carb Loading Guide·Race Morning Guide·Race Day Gear Guide·Pacing Strategy Guide·Mental Strategy Guide

Race Day Alerts

Get notified when the Old Colony Marathon forecast shifts — so you can adjust your gear, pacing, and strategy.

Forecast shift alerts (temp, wind, rain)
Updates as weather changes leading up to race day
Max one message per day
Text Alerts

USA, UK, and Canada only. Standard rates apply.

or
Email Alerts

By subscribing you agree to receive race forecasts and racecast.io updates.

Submit a correction

Spot something wrong or missing for the Old Colony Marathon? Let us know and we'll update it.

You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR

Submit a race

Missing a race? Send it in and we'll add it to Racecast.