The 2026 Aspen Valley Marathon has concluded.

Aspen Valley Marathon

Race complete
Basalt, CO, USA · July 25, 2026
clear-day58°·88° high·Light·Dry
8
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Weather
Course
FAQ
History

Race Day Weather

clear-day
58°at start
90° high
Breezy
Dry

Warm conditions, adjust pace early

Runners will face a temperature rising from 60°F at the start to a peak of 90°F. With a light SW wind at 7 mph, humidity remains moderate at 42%. To maintain performance, runners should start conservatively and adjust their pace as temperatures increase throughout the race.

clear-night9
clear-night9
clear-night9
clear-day9
clear-day9
clear-day7
clear-day8
clear-day7
clear-day7
clear-day7
partly-cloudy-day7
partly-cloudy-day6

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Race Info

Website
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Course Map

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FAQ

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When is the 2026 Aspen Valley Marathon?

The 2026 Aspen Valley Marathon will be held on Saturday July 25, 2026.

Is the Aspen Valley Marathon a Boston Marathon Qualifier?

Yes, the Aspen Valley Marathon is an official Boston Marathon qualifier.

What is the time limit for the Aspen Valley Marathon?

The time limit for the Aspen Valley Marathon is 7 hours.

What will the weather be like for the 2026 Aspen Valley Marathon?

The forecast calls for a high of 90°F and a low of 58°F with a 0% chance of rain.

Historical Weather

Based on 14 years of data
Avg Temp
77°F
L:50° H:78°
RunScore
8
Conditions
Rain Freq
7%
1 of 14 yrs
Wind8mph
Dew38°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults

2025 Aspen Valley Marathon

Partly cloudy throughout the day with morning rain.

2025
rain
54°/78°Light
8

2024 Aspen Valley Marathon

Clear conditions throughout the day.

2024
clear-day
53°/88°-
8

2023 Aspen Valley Marathon

Clear conditions throughout the day.

2023
clear-day
49°/80°-
8

2022 Aspen Valley Marathon

Partly cloudy throughout the day with early morning rain.

2022
clear-day
53°/78°-
8

2021 Aspen Valley Marathon

Clear conditions throughout the day.

2021
clear-night
21°/50°-
7

2019 Aspen Valley Marathon

Clear conditions throughout the day with late afternoon rain.

2019
clear-day
50°/85°-
8

2018 Aspen Valley Marathon

Partly cloudy throughout the day.

2018
clear-day
59°/86°-
8

2017 Aspen Valley Marathon

Clear conditions throughout the day.

2017
clear-day
50°/80°-
8

2016 Aspen Valley Marathon

Clear conditions throughout the day.

2016
clear-day
50°/84°-
8

2015 Aspen Valley Marathon

Partly cloudy throughout the day with rain.

2015
clear-day
51°/76°-
8

2014 Aspen Valley Marathon

Clear conditions throughout the day.

2014
clear-day
51°/81°-
8

2013 Aspen Valley Marathon

Clear conditions throughout the day.

2013
clear-day
51°/82°-
8

2012 Aspen Valley Marathon

Partly cloudy throughout the day with rain.

2012
partly-cloudy-day
54°/72°-
8

2011 Aspen Valley Marathon

Partly cloudy throughout the day with early morning rain.

2011
partly-cloudy-day
51°/68°-
8

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Free guidesMarathon Fueling Guide·Carb Loading Guide·Race Morning Guide·Race Day Gear Guide·Pacing Strategy Guide·Mental Strategy Guide

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