In 106 days · Sun, Jan 31, 2027
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Sunday, January 31st, 2027
16058 Dumfries Rd, Dumfries VA
Half · 5K · Marathon · 10K
28–45°F · low rain risk
See last 10 years
On this date: rain 3 of the last 10 years
2026
9–20°F
dry
2025
39–54°F
rain
2024
31–45°F
dry
2023
35–47°F
rain
2022
22–38°F
dry
2021
29–32°F
rain
2020
28–44°F
dry
2019
9–25°F
dry
2018
19–37°F
dry
2017
24–56°F
dry
Best months to race in Virginia →
Race-day forecast says layers
28°F at the start.
Gloves, ear warmers, throwaway layers, hand warmers — delivered before race day.
About this race
The Great Frosty Forest Race Details
This race is for a great cause through a scenic park. What isn’t to love? Run through the challenging trails of Prince William Forest Park.
New This Year
Endurance Addition: We have added a 50k endurance run to this venue!
Start and Finish Location
- Location: Near the Prince William Forest Park Campground.
- Note: This is not the traditional start area of our other PWFP races.
- Recommendation: Please follow the GPS coordinates in the parking section.
Event Accessibility
Walkers: Welcome to attend this event.
Further Information
For more details, visit the race page: Race Details.
Course map
Train with a club
Run clubs near Dumfries to train with before race day.
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