Pacific Northwest Marathon
Race Day Weather
Comfortable temps, warming through the race
Mild 54°F temps at gun time mean comfortable early miles without overheating risk. Temperatures rising to 68°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing. High humidity (81%) will make it harder to cool down through sweat — increase fluid intake accordingly.
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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.
FAQ
When is the 2026 Pacific Northwest Marathon?
Is the Pacific Northwest Marathon a Boston Marathon Qualifier?
What will the weather be like for the 2026 Pacific Northwest Marathon?
Historical Weather
Temperature History
Range of temperatures during race hours for each year.
Detailed History
| Year | Conditions | Low / High | Rain | Dew Point | Score |
|---|---|---|---|---|---|
2025 |  | 54°/74° | - | 52° | |
2024 | | 47°/72° | - | 48° | |
2023 | | 53°/82° | - | 53° | |
2022 | | 45°/69° | - | 47° |