Philadelphia typically experiences a transition into summer during June. Daily high temperatures average in the low 80s Fahrenheit (high 20s Celsius), while overnight lows settle in the mid-60s Fahrenheit (around 18 degrees Celsius). Humidity levels tend to increase throughout the month, contributing to a perception of warmer temperatures. Rainfall is common, with short-lived thunderstorms often occurring in the afternoons or evenings. Sunshine is prevalent, though periods of cloud cover are also expected.
Understanding typical weather patterns for this period allows residents and visitors to plan activities and pack accordingly. This information is crucial for tourism, outdoor events, and various industries sensitive to weather variations. Historically, June has been a month of fluctuating conditions in Philadelphia, balancing periods of pleasant warmth with occasional heavy rainfall. This variability underscores the importance of staying informed about current forecasts.