Portland Marathon

Portland, OR, USA · October 04, 2026

48°·61° high·Light·Dry

Weather

Race Day Weather

48°at start

65° high

Light

Dry

Cool start, warming trend

Runners will face a temperature rise from 48°F at the start to 63°F by the finish. With humidity averaging 71% and a light breeze from the SW, hydration will be crucial. Runners should plan for a conservative pace early on, especially as temperatures climb.

Race day forecast available in 14 days

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Distance: 26.2mi

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Race Info

The Portland Marathon is an annual race held on the first Sunday of October in Portland, Oregon, first run in 1972. It offers a full marathon (42.195 km / 26.219 mi), a half marathon (21.098 km / 13.110 mi), and a 10K. The course starts and ends at Tom McCall Waterfront Park at Salmon Street and Naito Parkway, crossing the Willamette River four times and passing through downtown, the Pearl District, and other Portland landmarks. The field has drawn close to 12,000 runners in recent years. Brooksee has produced the race since 2019. Wikipedia

Website

FAQ

When is the 2026 Portland Marathon?

The 2026 Portland Marathon will be held on Sunday October 4, 2026.

Is the Portland Marathon a Boston Marathon Qualifier?

Yes, the Portland Marathon is an official Boston Marathon qualifier.

What is the time limit for the Portland Marathon?

The time limit for the Portland Marathon is 6.55 hours.

What will the weather be like for the 2026 Portland Marathon?

The forecast calls for a high of 69°F and a low of 48°F with a 12% chance of rain.

Historical Weather

Based on 24 years of data

Avg Temp

64°F

L:52° H:64°

RunScore

Conditions

Rain Freq

21%

5 of 24 yrs

Wind6mph

Dew49°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 Portland Marathon Clearing in the afternoon. 2025	51°/67°	-	48°
2024 Portland Marathon Clear conditions throughout the day. 2024	48°/67°	-	49°
2023 Portland Marathon Clear conditions throughout the day. 2023	45°/63°	-	44°
2022 Portland Marathon Clear conditions throughout the day. 2022	57°/79°	-	54°
2021 Portland Marathon Partly cloudy throughout the day. 2021	48°/62°	-	47°
2019 Portland Marathon Clearing in the afternoon. 2019	46°/62°	-	46°
2017 Portland Marathon Partly cloudy throughout the day with rain clearing later. 2017	50°/59°	Light	48°
2016 Portland Marathon Cloudy skies throughout the day with a chance of rain throughout the day. 2016	55°/60°	Light	54°
2015 Portland Marathon Clear conditions throughout the day. 2015	50°/72°	-	49°
2014 Portland Marathon Clear conditions throughout the day. 2014	55°/74°	-	55°
2013 Portland Marathon Clear conditions throughout the day with morning rain. 2013	44°/68°	-	47°
2012 Portland Marathon Clear conditions throughout the day. 2012	44°/70°	-	34°
2011 Portland Marathon Cloudy skies throughout the day with early morning rain. 2011	55°/57°	-	53°
2010 Portland Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2010	57°/58°	Light	54°
2009 Portland Marathon Partly cloudy throughout the day with early morning rain. 2009	47°/56°	-	44°
2008 Portland Marathon Cloudy skies throughout the day with a chance of rain throughout the day. 2008	54°/56°	Light	52°
2007 Portland Marathon Cloudy skies throughout the day with rain. 2007	56°/66°	-	51°
2006 Portland Marathon Partly cloudy throughout the day. 2006	48°/61°	-	46°
2005 Portland Marathon Partly cloudy throughout the day. 2005	54°/62°	-	52°
2004 Portland Marathon Clearing in the afternoon. 2004	53°/62°	-	53°
2003 Portland Marathon Partly cloudy throughout the day. 2003	59°/64°	-	54°
2002 Portland Marathon Partly cloudy throughout the day. 2002	52°/59°	-	53°
2001 Portland Marathon Clear conditions throughout the day. 2001	55°/81°	-	51°
2000 Portland Marathon Cloudy skies throughout the day with rain clearing later. 2000	59°/61°	Light	52°

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