The 2025 event has concluded.

Silverton Alpine Marathon

Silverton, CO, USA • July 19, 2025
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rain Partly cloudy throughout the day with early morning rain.

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Get ready to experience an epic trail adventure! The 50K and Marathon (~26.7 miles) loop takes you through the heart of the San Juan Mountains, following the historic Alpine Loop jeep roads. Along the way, you’ll pass through ghost mining towns such as Howardsville, Eureka, Animas Forks, and Gladstone. The course’s high point is California Pass, sitting at a breathtaking 12,930 feet! Source

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When is the 2025 Silverton Alpine Marathon?

The 2025 Silverton Alpine Marathon will be held on Saturday July 19, 2025.

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Historical Weather & Results

RunScore
Run Score: 8
Temp
74°F
Min/Max
54°/75°F
Dew
34°F
Days of Rain
4/16
Wind
7mph
Tap a row for details.
YearLow / HighRain

Silverton Alpine Marathon 2024 Weather History

Clear conditions throughout the day.

2024
clear-day
47°/ 71°-
Run Score: 9

Silverton Alpine Marathon 2023 Weather History

Clear conditions throughout the day.

2023
clear-day
54°/ 76°-
Run Score: 8

Silverton Alpine Marathon 2022 Weather History

Partly cloudy throughout the day.

2022
clear-day
56°/ 79°-
Run Score: 8

Silverton Alpine Marathon 2021 Weather History

Clear conditions throughout the day.

2021
clear-day
58°/ 85°-
Run Score: 8

Silverton Alpine Marathon 2020 Weather History

Clear conditions throughout the day.

2020
clear-day
55°/ 89°-
Run Score: 8

Silverton Alpine Marathon 2019 Weather History

Partly cloudy throughout the day with rain clearing later.

2019
rain
54°/ 76°Light
Run Score: 8

Silverton Alpine Marathon 2018 Weather History

Partly cloudy throughout the day.

2018
clear-day
54°/ 74°-
Run Score: 8

Silverton Alpine Marathon 2017 Weather History

Partly cloudy throughout the day with rain.

2017
partly-cloudy-day
62°/ 77°Light
Run Score: 8

Silverton Alpine Marathon 2016 Weather History

Clear conditions throughout the day.

2016
clear-day
49°/ 71°-
Run Score: 8

Silverton Alpine Marathon 2015 Weather History

Partly cloudy throughout the day with late afternoon rain.

2015
clear-day
52°/ 78°-
Run Score: 8

Silverton Alpine Marathon 2014 Weather History

Partly cloudy throughout the day with rain.

2014
rain
52°/ 64°Light
Run Score: 8

Silverton Alpine Marathon 2013 Weather History

Partly cloudy throughout the day with rain.

2013
cloudy
58°/ 65°Light
Run Score: 8

Silverton Alpine Marathon 2012 Weather History

Clear conditions throughout the day.

2012
clear-day
48°/ 73°-
Run Score: 8

Silverton Alpine Marathon 2011 Weather History

Partly cloudy throughout the day with early morning rain.

2011
clear-day
54°/ 76°-
Run Score: 8

Silverton Alpine Marathon 2010 Weather History

Partly cloudy throughout the day.

2010
clear-day
54°/ 64°-
Run Score: 8

Silverton Alpine Marathon 2009 Weather History

Clear conditions throughout the day.

2009
clear-day
53°/ 86°-
Run Score: 8
You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR
You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR