Aspen Valley Marathon

Basalt, CO, USA • July 25, 2026
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Race Day Weather

partly-cloudy-day
53°
80° high
Breezy
Dry

Warming trend, steady breeze

Runners will face a temperature rise from 53°F at the start to a peak of 80°F. A steady breeze from the S will reach up to 10 mph, with gusts hitting 31 mph. With humidity at 45%, runners should consider pacing conservatively as temperatures climb, ensuring adequate hydration throughout the race.

Race day forecast available in 120 days
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Area Map

Course Map

Course Map Unavailable

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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.

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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