Triangle is a small town located in Prince William County, Virginia. The region experiences a humid subtropical climate characterized by hot and humid summers, mild winters, and moderate rainfall throughout the year. Summers see average high temperatures reaching the mid-80s to low 90s Fahrenheit, while winters usually stay in the 40s to 50s Fahrenheit range. Rainfall is relatively evenly distributed, with precipitation occurring throughout the year.

The town is situated near the confluence of the Potomac and Quantico Creeks, making hydrology a significant feature of the area. The Potomac River offers opportunities for boating, fishing, and kayaking, while Quantico Creek provides a peaceful setting for nature walks and birdwatching. The region is also known for its wetlands, including the Occoquan Bay National Wildlife Refuge, which offers various recreational activities like hiking, wildlife viewing, and photography.

In addition to the natural attractions, Triangle is home to Prince William Forest Park, a vast wooded area perfect for camping, hiking, and picnicking. The park boasts numerous trails, streams, and scenic overlooks for visitors to enjoy. Overall, Triangle, Virginia offers a pleasant climate, beautiful hydrological features, and diverse outdoor recreation opportunities for nature enthusiasts.