The 2025 event has concluded.

Marathon de Granby

Montreal, QC, Canada • October 5, 2025

Race Day Weather

clear-day
57°
86° high
Breezy
Dry

Warm day, adjust pace accordingly

Runners will face a temperature rise from 60°F at the start to a peak of 84°F. With a light WSW breeze at 9 mph and humidity around 57%, hydration will be crucial. Runners should pace conservatively early to manage the heat later in the race.

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Area Map

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When is the 2025 Marathon de Granby?

The 2025 Marathon de Granby will be held on Sunday October 5, 2025.

Is the Marathon de Granby a Boston Marathon Qualifier?

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

Historical Weather

Based on 2 years of data
Avg Temp
70°F
L:51° H:70°
RunScore
8
Conditions
Rain Freq
50%
1 of 2 yrs
Wind8mph
Dew51°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore

2024 Marathon de Granby

Partly cloudy throughout the day with rain.

2024
rain
46°/64°Light
9

2023 Marathon de Granby

Becoming cloudy in the afternoon with late afternoon rain.

2023
partly-cloudy-day
56°/75°-
8
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