ENDURrun Marathon

Conestogo, ON, Canada · August 15, 2027

61°·75° high·Light·Dry

Weather

Race Day Weather

61°at start

77° high

Light

Dry

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Warm day ahead, stay hydrated

Runners will face a temperature rise from 61°F at the start to 75°F by the finish. Humidity levels will be high at 72%, requiring hydration strategies to be adjusted throughout the race. With light winds from the NW at 7 mph, runners should focus on pacing conservatively in the warmer conditions.

Race day forecast available in 270 days

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Distance: 26.2mi

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Race Info

The ENDURrun Marathon is Stage 7 of The ENDURrun, a multi-day stage race held in Ontario's Waterloo Region since 2003 and organized by Run Waterloo. The marathon stage runs five 8.439 km loops on a mostly paved bike path at RIM Park in Waterloo and is a certified Boston Marathon-qualifying course (certification ON-2022-018-PTBA). The full seven-stage Ultimate, the only format that includes the marathon, was announced in December 2024 as biennial, but the 2027 Race Roster listing schedules the marathon stage for August 15, 2027, after the August 16, 2026 edition. A separate ENDURrun Sport event, capped at the half marathon, ends on the same day.

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Course Map

FAQ

When is the 2027 ENDURrun Marathon?

The 2027 ENDURrun Marathon will be held on Sunday August 15, 2027.

Is the ENDURrun Marathon a Boston Marathon Qualifier?

Yes, the ENDURrun Marathon is an official Boston Marathon qualifier.

What is the time limit for the ENDURrun Marathon?

The time limit for the ENDURrun Marathon is 6.33 hours.

What will the weather be like for the 2027 ENDURrun Marathon?

The forecast calls for a high of 78°F and a low of 61°F with a 9% chance of rain.

Historical Weather

Based on 21 years of data

Avg Temp

65°F

L:57° H:71°

RunScore

Conditions

Rain Freq

19%

4 of 21 yrs

Wind5mph

Dew59°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2026 ENDURrun Marathon Partly cloudy throughout the day. 2026	62°/71°	-	58°
2024 ENDURrun Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2024	67°/73°	Light	67°
2023 ENDURrun Marathon Partly cloudy throughout the day. 2023	57°/73°	-	60°
2022 ENDURrun Marathon Partly cloudy throughout the day. 2022	57°/72°	-	54°
2019 ENDURrun Marathon Partly cloudy throughout the day with rain. 2019	65°/73°	Light	65°
2018 ENDURrun Marathon Clear conditions throughout the day. 2018	56°/71°	-	59°
2017 ENDURrun Marathon Partly cloudy throughout the day. 2017	53°/73°	-	59°
2016 ENDURrun Marathon Partly cloudy throughout the day. 2016	66°/73°	-	64°
2015 ENDURrun Marathon Clear conditions throughout the day with morning rain. 2015	60°/77°	Light	63°
2014 ENDURrun Marathon Partly cloudy throughout the day. 2014	53°/65°	-	55°
2013 ENDURrun Marathon Partly cloudy throughout the day. 2013	53°/74°	-	55°
2012 ENDURrun Marathon Becoming cloudy in the afternoon. 2012	47°/68°	-	52°
2011 ENDURrun Marathon Partly cloudy throughout the day with rain. 2011	60°/70°	-	61°
2010 ENDURrun Marathon Partly cloudy throughout the day with late afternoon rain. 2010	72°/76°	-	72°
2009 ENDURrun Marathon Clear conditions throughout the day. 2009	57°/79°	-	65°
2008 ENDURrun Marathon Becoming cloudy in the afternoon. 2008	58°/73°	-	62°
2007 ENDURrun Marathon Partly cloudy throughout the day. 2007	47°/62°	-	48°
2006 ENDURrun Marathon Partly cloudy throughout the day with early morning rain. 2006	62°/64°	Light	60°
2005 ENDURrun Marathon Becoming cloudy in the afternoon. 2005	65°/74°	-	64°
2004 ENDURrun Marathon Clear conditions throughout the day. 2004	40°/66°	-	46°
2003 ENDURrun Marathon Clear conditions throughout the day. 2003	50°/68°	-	52°

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