Groundhog Day Marathon

Grand Rapids, MI, USA · February 6, 2027·

20°·27° high·Breezy·Dry

Weather

Groundhog Day Marathon race day weather

20°at start

29° high

Breezy

Dry

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Cold start, gradual warm-up

Runners will face a temperature rise from 20°F at the start to 27°F by finish. Wind will be light from the SW, peaking at 9 mph, with gusts up to 21 mph. With humidity at 73%, adjusting pacing early will be key to maintain comfort and performance throughout the race.

Race day forecast available in 77 days

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Distance: 26.2mi

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About the Groundhog Day Marathon

The Groundhog Day Marathon is a winter marathon and half marathon held the first weekend of February in Walker, Michigan, near Grand Rapids. The marathon is 12 loops of a paved, certified course of about 2.18 miles, and the half marathon is six loops, with snow on the course expected. The course is certified for Boston qualifying. A 1/6 marathon of two loops runs on Friday evening before the Saturday morning start. Source

Website

Race weekend

Friday, February 5

6:30 PM1/6 Marathon (4.4 mi)

Saturday, February 6

8:00 AMMarathon (26.2 mi)

8:00 AMHalf Marathon (13.1 mi)

Course Map

Groundhog Day Marathon FAQ

When is the 2027 Groundhog Day Marathon?

The 2027 Groundhog Day Marathon will be held on Saturday February 6, 2027.

Is the Groundhog Day Marathon a Boston Marathon Qualifier?

Yes, the Groundhog Day Marathon is an official Boston Marathon qualifier.

What will the weather be like for the 2027 Groundhog Day Marathon?

The forecast calls for a high of 31°F and a low of 18°F with a 8% chance of rain.

What is the weather usually like for the Groundhog Day Marathon?

Over the 14 years racecast.io has race-day weather for (2013 to 2026), it averaged 19°F at the start and 25°F by a typical finish. Rain fell during race hours in 4 of those years (2013, 2015, 2018 and 2020).

What was the hottest Groundhog Day Marathon?

Of the 14 years on record, 2019 was the warmest, reaching 36°F during race hours. The coldest start was 2022, at 3°F.

What was the windiest Groundhog Day Marathon?

Of the 14 years on record, 2015 was the windiest, with wind averaging 18 mph during race hours. The calmest was 2022, at 5 mph.

Groundhog Day Marathon weather history

Based on 14 years of data

Avg Temp

22°F

L:19° H:25°

RunScore

Conditions

Rain Freq

29%

4 of 14 yrs

Wind11mph

Dew15°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2026 Groundhog Day Marathon Partly cloudy throughout the day. 2026	16°/18°	-	6°
2025 Groundhog Day Marathon Cloudy skies throughout the day with late afternoon snow. 2025	24°/26°	-	16°
2024 Groundhog Day Marathon Partly cloudy throughout the day. 2024	27°/28°	-	27°
2023 Groundhog Day Marathon Partly cloudy throughout the day. 2023	14°/23°	-	7°
2022 Groundhog Day Marathon Partly cloudy throughout the day with early morning snow. 2022	3°/17°	-	7°
2021 Groundhog Day Marathon Cloudy skies throughout the day with snow. 2021	14°/17°	-	9°
2020 Groundhog Day Marathon Cloudy skies throughout the day with rain or snow in the morning and afternoon. 2020	32°/34°	Light	29°
2019 Groundhog Day Marathon Partly cloudy throughout the day. 2019	19°/36°	-	22°
2018 Groundhog Day Marathon Cloudy skies throughout the day with rain or snow. 2018	20°/23°	Light	14°
2017 Groundhog Day Marathon Partly cloudy throughout the day. 2017	12°/26°	-	9°
2016 Groundhog Day Marathon Partly cloudy throughout the day. 2016	27°/33°	-	25°
2015 Groundhog Day Marathon Cloudy skies throughout the day with a chance of snow throughout the day. 2015	17°/19°	Light	13°
2014 Groundhog Day Marathon Partly cloudy throughout the day. 2014	21°/24°	-	15°
2013 Groundhog Day Marathon Cloudy skies throughout the day with a chance of snow throughout the day. 2013	17°/18°	Light	11°