Jack and Jills Downhill Marathon (Saturday)
Race Day Weather
Comfortable temps, big temp swing
Mild 54°F temps at gun time mean comfortable early miles without overheating risk. Temps will climb significantly to 74°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing. Moderate humidity at 66% is worth noting for effort level, especially in later miles.
Pace Calculator
Get forecast alerts for Jack and Jills Downhill Marathon (Saturday)
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Get your personalized Jack and Jills Downhill Marathon (Saturday) race plan
True Effort pacing, weather-adjusted mile splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide — all personalized to your goal and race-day conditions.
Race Info
The Jack & Jill's Downhill Marathon in North Bend, Washington, offers runners a fast, net-downhill course along the scenic Palouse to Cascades State Park Trail. Starting near the iconic Snoqualmie Tunnel, the marathon features a gradual descent of approximately 1,300 feet over 26.2 miles, providing an ideal setting for personal bests and Boston Marathon qualifications. The course is predominantly shaded, with a smooth, hard-packed gravel surface that is gentle on the legs, enhancing the overall running experience.
