Famous Idaho Potato Marathon

Boise, ID, USA • May 16, 2026
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Race Day Weather

partly-cloudy-day
51°
70° high
Breezy
Dry

Cool start, warm finish

Runners will face a temperature rise from 51°F at the start to a max of 69°F. Winds will be light at 10 mph from the SW, with occasional gusts up to 26 mph. With moderate humidity at 50%, pacing adjustments may be necessary as temperatures increase; starting conservatively is advised.

Race day forecast available in 25 days
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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

Area Map

Course Map

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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.

What will the weather be like for the 2026 Famous Idaho Potato Marathon?

The forecast calls for a high of 70°F and a low of 51°F with a 0% chance of rain.

Historical Weather

Based on 26 years of data
Avg Temp
72°F
L:52° H:72°
RunScore
8
Conditions
Rain Freq
8%
2 of 26 yrs
Wind10mph
Dew35°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore

2025 Famous Idaho Potato Marathon

Partly cloudy throughout the day with rain.

2025
cloudy
51°/54°Light
7

2024 Famous Idaho Potato Marathon

Clear conditions throughout the day.

2024
clear-day
43°/71°-
8

2023 Famous Idaho Potato Marathon

Clear conditions throughout the day.

2023
clear-day
53°/77°-
8

2022 Famous Idaho Potato Marathon

Partly cloudy throughout the day with morning rain.

2022
cloudy
51°/67°Light
8

2021 Famous Idaho Potato Marathon

Clear conditions throughout the day.

2021
clear-night
62°/83°-
8

2020 Famous Idaho Potato Marathon

Clear conditions throughout the day.

2020
partly-cloudy-day
72°/97°-
6

2019 Famous Idaho Potato Marathon

Clearing in the afternoon.

2019
clear-day
45°/63°-
9

2018 Famous Idaho Potato Marathon

Clear conditions throughout the day.

2018
clear-day
53°/77°-
8

2017 Famous Idaho Potato Marathon

Partly cloudy throughout the day.

2017
partly-cloudy-day
52°/74°-
8

2016 Famous Idaho Potato Marathon

Partly cloudy throughout the day with rain.

2016
cloudy
49°/58°-
8

2015 Famous Idaho Potato Marathon

Clear conditions throughout the day.

2015
clear-day
66°/77°-
8

2014 Famous Idaho Potato Marathon

Clear conditions throughout the day.

2014
clear-day
49°/76°-
8

2013 Famous Idaho Potato Marathon

Partly cloudy throughout the day.

2013
clear-day
46°/65°-
8

2012 Famous Idaho Potato Marathon

Clear conditions throughout the day.

2012
clear-day
44°/71°-
8

2011 Famous Idaho Potato Marathon

Clearing in the afternoon with late afternoon rain.

2011
cloudy
64°/84°-
8

2010 Famous Idaho Potato Marathon

Clear conditions throughout the day.

2010
clear-day
53°/77°-
8

2009 Famous Idaho Potato Marathon

Clear conditions throughout the day.

2009
clear-day
45°/76°-
8

2009 Famous Idaho Potato Marathon

Clear conditions throughout the day.

2009
clear-day
36°/56°-
6

2008 Famous Idaho Potato Marathon

Clear conditions throughout the day.

2008
clear-day
56°/89°-
8

2007 Famous Idaho Potato Marathon

Clear conditions throughout the day.

2007
clear-day
57°/78°-
8

2006 Famous Idaho Potato Marathon

Partly cloudy throughout the day with rain clearing later.

2006
partly-cloudy-day
59°/74°-
8

2005 Famous Idaho Potato Marathon

Clear conditions throughout the day.

2005
partly-cloudy-day
56°/73°-
8

2004 Famous Idaho Potato Marathon

Partly cloudy throughout the day.

2004
partly-cloudy-day
41°/56°-
8

2003 Famous Idaho Potato Marathon

Clear conditions throughout the day.

2003
cloudy
56°/78°-
8

2002 Famous Idaho Potato Marathon

Clear conditions throughout the day.

2002
clear-day
37°/62°-
8

2001 Famous Idaho Potato Marathon

Clearing in the afternoon.

2001
cloudy
53°/61°-
7

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