Jack and Jills Downhill Marathon (Sunday)
Race Day Weather
Cool start, warming finish
Runners will face a comfortable start at 51°F, with temperatures rising to 64°F by the finish. Light winds from the WNW at 6 mph will have minimal impact. With humidity at 63%, hydration should be prioritized, especially as the day warms. Toughest conditions will occur from miles 8-9 and 14-16, where headwinds may challenge pacing.
This course drops 860 ft from start to finish, so we look at it at 2 points, not just the start line. In a typical year, at 9:00/mi, you start at 51° and finish around 9:55 AM in 64°.
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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 Snoqualmie Tunnel, the 26.2-mile route features a gradual descent of approximately 1,300 feet, ideal for setting personal records or qualifying for the Boston Marathon. Runners traverse a smooth, hard-packed gravel trail, passing through the iconic Snoqualmie Tunnel and enjoying views of the Cascade Mountains and lush forests. The race is capped at 1,100 participants, with a 6:00 a.m. start and a 6.5-hour time limit, ensuring a well-supported and memorable experience.
