Portland Marathon

Portland, OR, USA · October 04, 2026
partly-cloudy-day48°·61° high·Light·Dry
9
Weather
Pace Calc
Course
Race Info
FAQ
History

Race Day Weather

partly-cloudy-day
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 18 days
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Pace Calculator

Distance: 26.2mi
0:00:00
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Race Info

The Portland Marathon Presented by OHSU Health is an annual sporting event which takes place on the first Sunday of October in Portland, Oregon, first held in 1972. The race consists of a full marathon (42.195 kilometres (26.219 mi)) as well as a half marathon (21.098 kilometres (13.110 mi)). The race starts and ends at the Tom McCall Waterfront Park at Salmon Street and Naito Parkway, and includes several bridge crossings and multiple iconic landmarks in Portland. The field has reached over 10,000 runners. Wikipedia

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Course Map

Course Map Unavailable

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FAQ

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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 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
67°F
L:51° H:67°
RunScore
8
Conditions
Rain Freq
21%
5 of 24 yrs
Wind7mph
Dew49°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore

2025 Portland Marathon

Clearing in the afternoon.

2025
partly-cloudy-night
51°/71°-
8

2024 Portland Marathon

Clear conditions throughout the day.

2024
clear-night
47°/70°-
8

2023 Portland Marathon

Clear conditions throughout the day.

2023
clear-night
45°/66°-
8

2022 Portland Marathon

Clear conditions throughout the day.

2022
clear-night
57°/83°-
8

2021 Portland Marathon

Partly cloudy throughout the day.

2021
clear-night
46°/65°-
8

2019 Portland Marathon

Clearing in the afternoon.

2019
cloudy
46°/66°-
9

2017 Portland Marathon

Partly cloudy throughout the day with rain clearing later.

2017
partly-cloudy-night
47°/61°Light
9

2016 Portland Marathon

Cloudy skies throughout the day with a chance of rain throughout the day.

2016
rain
55°/60°Light
7

2015 Portland Marathon

Clear conditions throughout the day.

2015
clear-night
50°/77°-
8

2014 Portland Marathon

Clear conditions throughout the day.

2014
clear-night
53°/78°-
8

2013 Portland Marathon

Clear conditions throughout the day with morning rain.

2013
partly-cloudy-night
43°/71°-
8

2012 Portland Marathon

Clear conditions throughout the day.

2012
clear-night
44°/74°-
8

2011 Portland Marathon

Cloudy skies throughout the day with early morning rain.

2011
cloudy
55°/58°-
8

2010 Portland Marathon

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

2010
rain
57°/61°Light
7

2009 Portland Marathon

Partly cloudy throughout the day with early morning rain.

2009
cloudy
47°/58°-
8

2008 Portland Marathon

Cloudy skies throughout the day with a chance of rain throughout the day.

2008
cloudy
53°/57°Light
7

2007 Portland Marathon

Cloudy skies throughout the day with rain.

2007
cloudy
56°/66°-
8

2006 Portland Marathon

Partly cloudy throughout the day.

2006
partly-cloudy-night
46°/63°-
8

2005 Portland Marathon

Partly cloudy throughout the day.

2005
cloudy
54°/63°-
9

2004 Portland Marathon

Clearing in the afternoon.

2004
fog
52°/67°-
8

2003 Portland Marathon

Partly cloudy throughout the day.

2003
cloudy
58°/65°-
9

2002 Portland Marathon

Partly cloudy throughout the day.

2002
partly-cloudy-night
52°/61°-
9

2001 Portland Marathon

Clear conditions throughout the day.

2001
clear-night
54°/85°-
8

2000 Portland Marathon

Cloudy skies throughout the day with rain clearing later.

2000
rain
59°/63°Light
7

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