Grand Rapids Marathon

Grand Rapids, MI, USA · October 18, 2026

44°·58° high·Breezy·Dry

Weather

Race Day Weather

44°at start

58° high

Breezy

Dry

Cool temps, manageable wind

Runners will face a temperature rise from 44°F to 58°F, with a consistent wind from the SW at 10 mph. Humidity sits at 70%, which may feel heavier as temperatures increase. It's advisable to start conservatively and monitor hydration closely, especially if the humidity affects comfort.

Race day forecast available in 144 days

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Race Info

The Metro Health/Grand Rapids Marathon is a 26.219-mile (42.195 km) race run every October in Grand Rapids, Michigan, USA since 2004. It is a USATF certified course. The Grand Rapids Marathon picked up Metro Health as a title sponsor in 2008. The full marathon gives runners a tour of downtown Grand Rapids and then heads out of the city and into the trails of Millennium Park. It is considered a flat, fast course and is a qualifying opportunity for the Boston Marathon. Wikipedia

Website

Course Map

FAQ

When is the 2026 Grand Rapids Marathon?

The 2026 Grand Rapids Marathon will be held on Sunday October 18, 2026.

Is the Grand Rapids Marathon a Boston Marathon Qualifier?

Yes, the Grand Rapids Marathon is an official Boston Marathon qualifier.

What will the weather be like for the 2026 Grand Rapids Marathon?

The forecast calls for a high of 60°F and a low of 44°F with a 15% chance of rain.

Historical Weather

Based on 20 years of data

Avg Temp

57°F

L:42° H:58°

RunScore

Conditions

Rain Freq

25%

5 of 20 yrs

Wind13mph

Dew39°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 Grand Rapids Marathon Becoming cloudy in the afternoon with a chance of rain throughout the day. 2025	51°/57°	Light	52°
2024 Grand Rapids Marathon Clear conditions throughout the day. 2024	51°/74°	-	47°
2023 Grand Rapids Marathon Partly cloudy throughout the day with late afternoon rain. 2023	45°/56°	-	42°
2022 Grand Rapids Marathon Cloudy skies throughout the day with rain. 2022	41°/52°	Light	39°
2021 Grand Rapids Marathon Partly cloudy throughout the day. 2021	46°/62°	-	40°
2020 Grand Rapids Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2020	56°/66°	Light	57°
2019 Grand Rapids Marathon Partly cloudy throughout the day with early morning rain. 2019	51°/65°	-	50°
2018 Grand Rapids Marathon Partly cloudy throughout the day. 2018	37°/43°	-	29°
2017 Grand Rapids Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2017	54°/67°	Light	56°
2016 Grand Rapids Marathon Partly cloudy throughout the day. 2016	38°/66°	-	44°
2015 Grand Rapids Marathon Partly cloudy throughout the day. 2015	33°/52°	-	28°
2014 Grand Rapids Marathon Partly cloudy throughout the day. 2014	30°/53°	-	35°
2013 Grand Rapids Marathon Partly cloudy throughout the day with rain. 2013	38°/55°	-	38°
2012 Grand Rapids Marathon Partly cloudy throughout the day. 2012	39°/61°	-	42°
2011 Grand Rapids Marathon Partly cloudy throughout the day with rain clearing later. 2011	49°/57°	Light	43°
2010 Grand Rapids Marathon Partly cloudy throughout the day. 2010	41°/61°	-	37°
2009 Grand Rapids Marathon Partly cloudy throughout the day. 2009	28°/49°	-	32°
2008 Grand Rapids Marathon Partly cloudy throughout the day. 2008	41°/60°	-	35°
2007 Grand Rapids Marathon Clear conditions throughout the day. 2007	33°/54°	-	32°
2006 Grand Rapids Marathon Partly cloudy throughout the day. 2006	38°/48°	-	26°