Famous Idaho Potato Marathon

Boise, ID, USA • May 16, 2026

Race Day Weather

51°

70° high

Breezy

Dry

Cool start, warming trend ahead

Runners will face a temperature rise from 51°F at the start to a peak of 69°F. Winds will be from the WSW at 10 mph with gusts reaching 26 mph. With humidity at 50% and a comfortable dew point of 41°F, hydration is key, and runners should adjust their pace as temperatures climb.

Race day forecast available in 50 days

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Pre-raceRace windowPost-race

The Treasure Valley YMCA is proud to bring you the 48th annual YMCA Famous Idaho Potato Marathon and Fun Runs presented by the Idaho Potato Commisson. All of our races take place on the flat and scenic Boise Greenbelt starting and finishing at the The Morrison Center. Source

Course Map

FAQ

When is the 2026 Famous Idaho Potato Marathon?

The 2026 Famous Idaho Potato Marathon will be held on Saturday May 16, 2026.

Is the Famous Idaho Potato Marathon a Boston Marathon Qualifier?

Yes, the Famous Idaho Potato Marathon is an official Boston Marathon qualifier.

What is the time limit for the Famous Idaho Potato Marathon?

The time limit for the Famous Idaho Potato Marathon is 8 hours.

Historical Weather

Based on 26 years of data

Avg Temp

72°F

L:52° H:72°

RunScore

Conditions

Rain Freq

2 of 26 yrs

Wind10mph

Dew35°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 Famous Idaho Potato Marathon Partly cloudy throughout the day with rain. 2025	51°/54°	Light	43°
2024 Famous Idaho Potato Marathon Clear conditions throughout the day. 2024	43°/71°	-	23°
2023 Famous Idaho Potato Marathon Clear conditions throughout the day. 2023	53°/77°	-	38°
2022 Famous Idaho Potato Marathon Partly cloudy throughout the day with morning rain. 2022	51°/67°	Light	44°
2021 Famous Idaho Potato Marathon Clear conditions throughout the day. 2021	62°/83°	-	26°
2020 Famous Idaho Potato Marathon Clear conditions throughout the day. 2020	72°/97°	-	43°
2019 Famous Idaho Potato Marathon Clearing in the afternoon. 2019	45°/63°	-	34°
2018 Famous Idaho Potato Marathon Clear conditions throughout the day. 2018	53°/77°	-	47°
2017 Famous Idaho Potato Marathon Partly cloudy throughout the day. 2017	52°/74°	-	40°
2016 Famous Idaho Potato Marathon Partly cloudy throughout the day with rain. 2016	49°/58°	-	39°
2015 Famous Idaho Potato Marathon Clear conditions throughout the day. 2015	66°/77°	-	47°
2014 Famous Idaho Potato Marathon Clear conditions throughout the day. 2014	49°/76°	-	36°
2013 Famous Idaho Potato Marathon Partly cloudy throughout the day. 2013	46°/65°	-	37°
2012 Famous Idaho Potato Marathon Clear conditions throughout the day. 2012	44°/71°	-	26°
2011 Famous Idaho Potato Marathon Clearing in the afternoon with late afternoon rain. 2011	64°/84°	-	45°
2010 Famous Idaho Potato Marathon Clear conditions throughout the day. 2010	53°/77°	-	34°
2009 Famous Idaho Potato Marathon Clear conditions throughout the day. 2009	45°/76°	-	33°
2009 Famous Idaho Potato Marathon Clear conditions throughout the day. 2009	36°/56°	-	26°
2008 Famous Idaho Potato Marathon Clear conditions throughout the day. 2008	56°/89°	-	38°
2007 Famous Idaho Potato Marathon Clear conditions throughout the day. 2007	57°/78°	-	40°
2006 Famous Idaho Potato Marathon Partly cloudy throughout the day with rain clearing later. 2006	59°/74°	-	50°
2005 Famous Idaho Potato Marathon Clear conditions throughout the day. 2005	56°/73°	-	45°
2004 Famous Idaho Potato Marathon Partly cloudy throughout the day. 2004	41°/56°	-	35°
2003 Famous Idaho Potato Marathon Clear conditions throughout the day. 2003	56°/78°	-	50°
2002 Famous Idaho Potato Marathon Clear conditions throughout the day. 2002	37°/62°	-	23°
2001 Famous Idaho Potato Marathon Clearing in the afternoon. 2001	53°/61°	-	33°