Grand Ridge Marathon
Race Day Weather
Cool, rainy, hilly challenge
Runners will face a cool start at 47°F, rising slightly to 50°F by the finish. Rain is likely but expected to be light, with humidity at 77% and a gentle SSE wind at 6 mph. The hilly terrain will make pacing adjustments necessary, especially during climbs from miles 1-3 and 9-11, where runners should conserve energy and hydrate frequently.
Pace Calculator
Enter a finish time to see what race day does to it.
Get forecast alerts for Grand Ridge Marathon
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 Grand Ridge Marathon race plan
A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.
Race Info
Grand Ridge Park is an incredible setting to finish off this year. Since 2000, the Washington Trails Association has been hard at work developing over seven miles of connected trail from old logging roads and user-built paths. It has all come together to create a beautiful system of trails that are ideal for running, hiking and biking.