Marathon de Granby

Granby, QC, Canada · October 4, 2026
partly-cloudy-day52°·63° high·Light·Dry
9
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Race Day Weather

partly-cloudy-day
52°at start
64° high
Light
Dry

Cool morning, gradual warming

Runners will face a steady temperature rise from 51°F at the start to 63°F by the finish, accompanied by light humidity at 79%. With max winds from the SSW at 7 mph, conditions are favorable for a strong performance. Runners should consider maintaining a conservative pace early on and staying hydrated as temperatures climb.

Race day forecast available in 14 days
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Distance: 26.2mi
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Race Info

The Marathon Sun Life de Granby runs each October in Granby, Quebec, starting and finishing at Parc Daniel-Johnson. The course passes through downtown Granby and along Lac Boivin, with marathon finishers continuing into Parc national de la Yamaska. It is a Boston Marathon and New York City Marathon qualifier. The 2025 edition drew about 6,000 participants across six distances, up from roughly 4,400 the year before.

Area Map

Course Map

FAQ

When is the 2026 Marathon de Granby?

The 2026 Marathon de Granby will be held on Sunday October 4, 2026.

Is the Marathon de Granby a Boston Marathon Qualifier?

Yes, the Marathon de Granby is an official Boston Marathon qualifier.

What will the weather be like for the 2026 Marathon de Granby?

The forecast calls for a high of 63°F and a low of 49°F with a 11% chance of rain.

Historical Weather

Based on 6 years of data
Avg Temp
66°F
L:53° H:66°
RunScore
8
Conditions
Rain Freq
17%
1 of 6 yrs
Wind8mph
Dew46°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore
2025
clear-day
67°/86°-
8
2024
rain
50°/65°Light
9
2023
partly-cloudy-day
62°/76°-
8
2022
partly-cloudy-day
42°/53°-
9
2021
partly-cloudy-day
49°/57°-
9
2019
cloudy
49°/58°-
9