Birkie Trail Run
Race Day Weather
Cool start, warming trend ahead
Runners will face a steady temperature climb from 51°F at the start, reaching a high of 64°F by race end. Winds will be light, reaching up to 9 mph, with a mix of headwind and crosswind throughout. With humidity at 75%, runners should consider adjusting their pace early to account for the warming conditions in later laps.
Pace Calculator
Enter a finish time to see what race day does to it.
Get forecast alerts for Birkie Trail Run
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 Birkie Trail Run 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
The Birkie Trail Run runs through the pine forests of northwest Wisconsin along the American Birkebeiner Trail near Cable, Wisconsin. The marathon covers two laps of a 13.1-mile single-track and gravel loop that starts and finishes at the American Birkebeiner Trailhead. Held each September, the race weekend also includes a half marathon, 10K, Nordic Trek, 5K, and kids' events. The trail shares its name and route with the American Birkebeiner, a well-known Nordic ski marathon held on the same course each winter. Source
