With a population of around 8,300, Mill Creek sits in Pennsylvania, United States. The city operates in the Eastern Time Zone.
Recent weather here gives a sense of typical conditions: in 2025, Mill Creek recorded a mean annual temperature of 56°F, ranging from 7°F lows in January to 103°F highs in June, with about 39 inches of precipitation across the year.
View historical weather for Mill Creek · More cities in Pennsylvania