Famous Idaho Potato Half Marathon

Boise, ID, USA · May 15, 2027·
partly-cloudy-day63°·68° high·Breezy·Dry
7
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Race Day Weather

partly-cloudy-day
63°at start
77° high
Breezy
Dry
Your goal
0:00:00

Comfortable temps, warming through the race

Starting at 63°F, heat will be a factor from the gun — go out conservative and stay on top of hydration. Temperatures rising to 77°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing.

Race day forecast available in 189 days
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Pace Calculator

13.1mi
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Race Plan

Get your personalized Famous Idaho Potato Half Marathon race plan

A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.

Race Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

Race Info

The Famous Idaho Potato Half Marathon covers 13.1 miles on the Boise Greenbelt, starting and finishing at The Morrison Center on the Boise State University campus. The course is flat and paved and stays on the path system along the city's river corridor. It runs on the Saturday of race weekend, after the marathon start and before the 10K and 5K.

Race weekend

Saturday, May 15
7:00 AMMarathon (26.2 mi)
9:00 AMHalf Marathon (13.1 mi)
10:00 AM10K (6.2 mi)11:00 AM5K (3.1 mi)

FAQ

When is the 2027 Famous Idaho Potato Half Marathon?

The 2027 Famous Idaho Potato Half Marathon will be held on Saturday May 15, 2027.

What will the weather be like for the 2027 Famous Idaho Potato Half Marathon?

The forecast calls for a high of 77°F and a low of 51°F with a 4% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

Historical Weather

Based on 27 years of data
Avg Temp
61°F
L:57° H:64°
RunScore
8
Conditions
Rain Freq
7%
2 of 27 yrs
Wind8mph
Dew38°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
clear-day
52°/55°-
8
2025
cloudy
51°/54°Light
9
2024
clear-day
52°/61°-
10
2023
clear-day
65°/73°-
6
2022
rain
52°/59°Light
8
2021
clear-day
65°/73°-
7
2020
clear-day
76°/87°-
4
2019
partly-cloudy-day
49°/54°-
10
2018
clear-day
61°/66°-
6
2017
clear-day
57°/66°-
8
2016
clear-day
52°/55°-
10
2015
clear-day
68°/74°-
6
2014
clear-day
61°/66°-
7
2013
partly-cloudy-day
52°/59°-
8
2012
clear-day
54°/61°-
9
2011
clear-day
64°/70°-
6
2010
clear-day
57°/68°-
7
2009
clear-day
57°/65°-
9
2009
clear-day
41°/48°-
8
2008
clear-day
70°/79°-
6
2007
clear-day
62°/69°-
7
2006
clear-day
66°/69°-
6
2005
partly-cloudy-day
58°/67°-
7
2004
clear-day
45°/51°-
9
2003
clear-day
63°/70°-
6
2002
clear-day
45°/53°-
10
2001
clear-day
56°/58°-
8