The 2025 event has concluded.

Mt. Sneffels Marathon

Ouray, CO, USA • August 16, 2025
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partly-cloudy-day Partly cloudy throughout the day.

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When is the 2025 Mt. Sneffels Marathon?

The 2025 Mt. Sneffels Marathon will be held on Saturday August 16, 2025.

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Historical Weather & Results

RunScore
Run Score: 8
Temp
71°F
Min/Max
52°/73°F
Dew
37°F
Days of Rain
2/17
Wind
7mph
Tap a row for details.
YearLow / HighRain

Mt. Sneffels Marathon 2024 Weather History

Partly cloudy throughout the day with rain.

2024
clear-day
54°/ 74°-
Run Score: 8

Mt. Sneffels Marathon 2023 Weather History

Partly cloudy throughout the day.

2023
clear-day
54°/ 78°-
Run Score: 8

Mt. Sneffels Marathon 2022 Weather History

Partly cloudy throughout the day with late afternoon rain.

2022
partly-cloudy-day
53°/ 65°-
Run Score: 8

Mt. Sneffels Marathon 2021 Weather History

Partly cloudy throughout the day.

2021
cloudy
45°/ 66°-
Run Score: 8

Mt. Sneffels Marathon 2019 Weather History

Clear conditions throughout the day.

2019
clear-day
56°/ 76°-
Run Score: 8

Mt. Sneffels Marathon 2018 Weather History

Clear conditions throughout the day.

2018
clear-day
52°/ 78°-
Run Score: 8

Mt. Sneffels Marathon 2017 Weather History

Becoming cloudy in the afternoon with late afternoon rain.

2017
clear-day
47°/ 78°-
Run Score: 8

Mt. Sneffels Marathon 2016 Weather History

Partly cloudy throughout the day.

2016
partly-cloudy-day
50°/ 73°-
Run Score: 8

Mt. Sneffels Marathon 2015 Weather History

Partly cloudy throughout the day with early morning rain.

2015
partly-cloudy-day
51°/ 66°-
Run Score: 8

Mt. Sneffels Marathon 2014 Weather History

Clear conditions throughout the day.

2014
clear-day
50°/ 77°-
Run Score: 8

Mt. Sneffels Marathon 2013 Weather History

Partly cloudy throughout the day with rain.

2013
clear-day
51°/ 68°Light
Run Score: 8

Mt. Sneffels Marathon 2012 Weather History

Partly cloudy throughout the day.

2012
partly-cloudy-day
57°/ 76°-
Run Score: 8

Mt. Sneffels Marathon 2011 Weather History

Partly cloudy throughout the day.

2011
clear-day
54°/ 80°-
Run Score: 8

Mt. Sneffels Marathon 2010 Weather History

Partly cloudy throughout the day.

2010
clear-day
55°/ 64°-
Run Score: 8

Mt. Sneffels Marathon 2009 Weather History

Partly cloudy throughout the day with a chance of rain throughout the day.

2009
partly-cloudy-day
55°/ 65°Light
Run Score: 8

Mt. Sneffels Marathon 2007 Weather History

Clear conditions throughout the day.

2007
clear-day
53°/ 77°-
Run Score: 8

Mt. Sneffels Marathon 2005 Weather History

Clear conditions throughout the day.

2005
clear-day
52°/ 71°-
Run Score: 9
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