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

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

Area Map

Course Map

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 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
clear-day
50°/76°-
8
2024
cloudy
53°/77°-
8