Greenbrier River Trail Marathon
Race Day Weather
Cool start, warm finish
Runners will face temperatures starting at 54°F and warming to 71°F by race end. A light wind from the W will be present, with gusts up to 20 mph. Given the humidity at 66%, it's advisable for runners to start conservatively and hydrate frequently as temperatures rise.
Get forecast alerts for Greenbrier River Trail Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Race Info
A one of a kind race, in the State of West Virginia: A point-to-point full marathon (26.2 miles) on a flat/slightly downhill (1% grade) course and the official inaugural half-marathon (13.1 miles - out-and-back course) on the scenic Greenbrier River Trail (GRT) in Pocahontas County, WV. The Marathon starts in Cass Scenic Railroad State Park and runs south on the trail, finishing at Stillwell Park, in Marlinton, WV. USATF-certified Course! Whereas, the Half Marathon (not-certified) will start and finish at Stillwell Park in Marlinton. The Half Marathon will exit Stillwell Park, turning right onto the trail, heading south; hitting the turnaround at 6.55 miles and heading back to finish at Stillwell. Source
FAQ
When is the 2026 Greenbrier River Trail Marathon?
Is the Greenbrier River Trail Marathon a Boston Marathon Qualifier?
What is the time limit for the Greenbrier River Trail Marathon?
What will the weather be like for the 2026 Greenbrier River Trail 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 | | 50°/77° | - | 48° | |
2024 |  | 52°/77° | - | 55° | |
2023 | | 39°/47° | - | 32° | |
2022 |  | 51°/52° | Light | 50° |