Marathon de Granby
Race Day Weather
Cool start, light rain expected
Runners will face temperatures starting at 49°F and rising to 61°F. With light rain anticipated and humidity around 65%, maintaining hydration will be crucial. Wind will be light, but gusts up to 32 mph may impact pacing. A throwaway layer is advisable for the pre-race wait due to the cooler feels-like temperature.
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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.
FAQ
When is the 2026 Marathon de Granby?
Is the Marathon de Granby a Boston Marathon Qualifier?
What will the weather be like for the 2026 Marathon de Granby?
Historical Weather
Temperature History
Range of temperatures during race hours for each year.
Detailed History
| Year | Conditions | Low / High | Rain | Dew Point | Score |
|---|---|---|---|---|---|
2025 |  | 61°/79° | - | 57° | |
2024 |  | 45°/61° | - | 46° | |
2023 | | 53°/70° | - | 55° | |
2022 | | 38°/51° | - | 32° | |
2021 | | 49°/56° | - | 46° | |
2019 | | 45°/56° | - | 42° |