Pacific Northwest Marathon

Harrisburg, OR, USA · September 19, 2026
partly-cloudy-day52°·66° high·Light·Rain possible
9
Register
Weather
Pace Calc
Course
Race Info
FAQ
History

Race Day Weather

partly-cloudy-day
52°at start
71° high
Light
Dry

Cool start, warming up

Runners will face a starting temperature of 52°F, rising to 69°F by race end. Winds will be light at 5 mph from the WSW, with occasional gusts up to 17 mph. With humidity at 72% and the potential for light rain, runners should consider adjusting their pace as the temperature rises and stay hydrated.

Race day forecast available in 24 days
partly-cloudy-night9
partly-cloudy-night7
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day8

Pace Calculator

Distance: 26.2mi
0:00:00
HH:MM:SS
Pace
—
Weather Adj.
—
Common Goals:

Get forecast alerts for Pacific Northwest Marathon

We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.

Race Info

The Pacific Northwest Marathon offers a flat, fast out-and-back course through the scenic Willamette Valley farmland in Harrisburg, Oregon. With marathon, half marathon, 10K, and 5K options, the event is known for its small race charm, frequent aid stations, and friendly volunteers, making it a great fall tune-up. The USATF-certified course is ideal for runners aiming for personal bests or Boston Marathon qualification.

Website
Area Map

Course Map

Course Map Unavailable

We don't have course map data for Pacific Northwest Marathon yet. If you have a GPX file (or other format) for this race, we'd love to add it!

Request / Submit Map

FAQ

Ask a Question about the Pacific Northwest Marathon

Racecast Concierge (free during beta)

Ask a question about the Pacific Northwest Marathon and we'll do the hard part and find the answer for you within 48 hours.

By using Racecast Concierge, you agree to receive email alerts pertaining to the Pacific Northwest Marathon and general racecast.io updates.

When is the 2026 Pacific Northwest Marathon?

The 2026 Pacific Northwest Marathon will be held on Saturday September 19, 2026.

Is the Pacific Northwest Marathon a Boston Marathon Qualifier?

Yes, the Pacific Northwest Marathon is an official Boston Marathon qualifier.

What will the weather be like for the 2026 Pacific Northwest Marathon?

The forecast calls for a high of 76°F and a low of 51°F with a 10% chance of rain.

Historical Weather

Based on 3 years of data
Avg Temp
76°F
L:51° H:76°
RunScore
7
Conditions
Rain Freq
0%
0 of 3 yrs
Wind11mph
Dew52°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore

2025 Pacific Northwest Marathon

Clear conditions throughout the day.

2025
clear-day
54°/74°-
8

2024 Pacific Northwest Marathon

Clear conditions throughout the day.

2024
clear-day
47°/72°-
8

2023 Pacific Northwest Marathon

Clear conditions throughout the day.

2023
clear-day
53°/82°-
8

More OR Races

Newport Marathon - Oregon
2027-06-05 · Newport, OR, USA
Boring Marathon
2026-09-13 · Boring, OR, USA
Portland Marathon
2026-10-04 · Portland, OR, USA
Rogue Marathon
2026-10-10 · Medford, OR, USA
Columbia Gorge Marathon
2026-10-18 · Hood River, OR, USA
Silver Falls Trail Marathon
2026-10-17 · Silverton, OR, USA
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