Tunnel Light Marathon

North Bend, WA, USA • September 14, 2025
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partly-cloudy-day Partly cloudy throughout the day.

350 lumens of light to illuminate the trail ahead. Black Diamond Spot 350 Headlamp.When you buy through our links, we may earn a commission.

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When is the 2025 Tunnel Light Marathon?

The 2025 Tunnel Light Marathon will be held on Sunday September 14, 2025.

Is the Tunnel Light Marathon a Boston Marathon Qualfier?

Yes, the Tunnel Light Marathon is an official Boston Marathon qualifier.

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Historical Weather & Results

RunScore
Run Score: 8
Temp
69°F
Min/Max
57°/69°F
Dew
52°F
Days of Rain
6/12
Wind
8mph
Tap a row for details.
YearLow / HighRain

Tunnel Light Marathon 2024 Weather History

Partly cloudy throughout the day.

2024
partly-cloudy-day
61°/ 73°-
Run Score: 9

Tunnel Light Marathon 2023 Weather History

Partly cloudy throughout the day.

2023
clear-day
58°/ 79°-
Run Score: 8

Tunnel Light Marathon 2022 Weather History

Partly cloudy throughout the day.

2022
clear-day
57°/ 72°-
Run Score: 8

Tunnel Light Marathon 2021 Weather History

Cloudy skies throughout the day with morning rain.

2021
rain
57°/ 64°Light
Run Score: 9

Tunnel Light Marathon 2019 Weather History

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

2019
rain
59°/ 61°Light
Run Score: 8

Tunnel Light Marathon 2018 Weather History

Partly cloudy throughout the day with rain clearing later.

2018
rain
55°/ 63°Light
Run Score: 7

Tunnel Light Marathon 2017 Weather History

Partly cloudy throughout the day with rain.

2017
partly-cloudy-day
55°/ 65°Light
Run Score: 8

Tunnel Light Marathon 2016 Weather History

Partly cloudy throughout the day.

2016
cloudy
55°/ 67°-
Run Score: 9

Tunnel Light Marathon 2015 Weather History

Partly cloudy throughout the day with morning rain.

2015
cloudy
61°/ 66°Light
Run Score: 8

Tunnel Light Marathon 2014 Weather History

Clear conditions throughout the day.

2014
clear-day
54°/ 83°-
Run Score: 8

Tunnel Light Marathon 2013 Weather History

Cloudy skies throughout the day with rain.

2013
cloudy
59°/ 66°Light
Run Score: 8

Tunnel Light Marathon 2012 Weather History

Clear conditions throughout the day.

2012
clear-day
53°/ 73°-
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