The 2025 event has concluded.

Green River Marathon

Kent, WA, USA • June 7, 2025
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clear-day Clear conditions throughout the day.

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When is the 2025 Green River Marathon?

The 2025 Green River Marathon will be held on Saturday June 7, 2025.

Is the Green River Marathon a Boston Marathon Qualfier?

Yes, the Green River Marathon is an official Boston Marathon qualifier.

What is the time limit for the Green River Marathon?

The time limit for the Green River Marathon is 6 hours.

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Historical Weather & Results

RunScore
Run Score: 8
Temp
68°F
Min/Max
57°/68°F
Dew
48°F
Days of Rain
2/17
Wind
10mph
Tap a row for details.
YearLow / HighRain

Green River Marathon 2024 Weather History

Partly cloudy throughout the day.

2024
cloudy
55°/ 62°-
Run Score: 9

Green River Marathon 2023 Weather History

Clear conditions throughout the day.

2023
clear-day
55°/ 70°-
Run Score: 9

Green River Marathon 2022 Weather History

Partly cloudy throughout the day with late afternoon rain.

2022
partly-cloudy-day
58°/ 68°-
Run Score: 9

Green River Marathon 2021 Weather History

Partly cloudy throughout the day.

2021
cloudy
55°/ 64°-
Run Score: 7

Green River Marathon 2020 Weather History

Partly cloudy throughout the day with afternoon rain.

2020
partly-cloudy-day
54°/ 61°-
Run Score: 8

Green River Marathon 2017 Weather History

Partly cloudy throughout the day.

2017
cloudy
57°/ 63°-
Run Score: 9

Green River Marathon 2016 Weather History

Clear conditions throughout the day.

2016
clear-day
67°/ 80°-
Run Score: 7

Green River Marathon 2015 Weather History

Partly cloudy throughout the day.

2015
partly-cloudy-day
64°/ 80°-
Run Score: 8

Green River Marathon 2014 Weather History

Partly cloudy throughout the day.

2014
partly-cloudy-day
57°/ 70°-
Run Score: 9

Green River Marathon 2013 Weather History

Partly cloudy throughout the day.

2013
cloudy
56°/ 69°-
Run Score: 9

Green River Marathon 2012 Weather History

Partly cloudy throughout the day with rain clearing later.

2012
cloudy
54°/ 65°Light
Run Score: 8

Green River Marathon 2011 Weather History

Clear conditions throughout the day.

2011
clear-day
56°/ 74°-
Run Score: 8

Green River Marathon 2010 Weather History

Clearing in the afternoon with rain clearing later.

2010
partly-cloudy-day
54°/ 66°Light
Run Score: 8

Green River Marathon 2009 Weather History

Cloudy skies throughout the day with morning rain.

2009
cloudy
57°/ 61°-
Run Score: 9

Green River Marathon 2008 Weather History

Cloudy skies throughout the day.

2008
cloudy
49°/ 56°-
Run Score: 9

Green River Marathon 2007 Weather History

Partly cloudy throughout the day.

2007
partly-cloudy-day
62°/ 77°-
Run Score: 8

Green River Marathon 2006 Weather History

Partly cloudy throughout the day.

2006
partly-cloudy-day
57°/ 68°-
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