Climate almanac
Johnstown
Pennsylvania, United States · 40.33°, -78.92°
What is the weather like in Johnstown in August?
In August, Johnstown is typically 79°F (26°C) during the day and 62°F (17°C) at night. The month brings about 3.9 in (98 mm) of precipitation in total.
- Average high79°F (26°C)
- Average low62°F (17°C)
- Precipitation3.9 in (98 mm)
- Clear or mostly clear days8
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)