The climate in Heilwood is characterized by warm summers and cold winters, with an average annual temperature of 52°F. The town is situated near the headwaters of Blacklick Creek, which is a tributary of the Conemaugh River. The hydrology constituents of the area are largely influenced by the surrounding forests and agricultural lands. As a result, there are ample opportunities for outdoor recreation in Heilwood, including hiking, fishing, and hunting. The nearby Blacklick Creek and Conemaugh River also offer kayaking and canoeing opportunities. Overall, Heilwood is a great place to enjoy nature and explore the outdoors.
Heilwood receives approximately 1228mm of rain per year, with humidity levels near 79% and air temperatures averaging around 9°C. Heilwood has a plant hardyness factor of 5, meaning plants and agriculture in this region thrive during a short period during spring and early summer. Most plants will die off during the colder winter months.