| NWS Forecast for: Chatham PA Issued by: National Weather Service Philadelphia, PA Last Update: 4:10 pm EDT Apr 20, 2026 |  |
Tonight: Mostly clear, with a low around 27. North wind around 5 mph. Tuesday: Widespread frost before 7am. Otherwise, sunny, with a high near 55. North wind around 5 mph becoming southwest in the afternoon. Tuesday Night: A chance of showers after 2am. Mostly cloudy, with a low around 42. South wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible. Wednesday: A chance of showers. Partly sunny, with a high near 67. South wind around 5 mph becoming west in the afternoon. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible. Wednesday Night: Partly cloudy, with a low around 46. Calm wind becoming north around 5 mph. Thursday: Mostly sunny, with a high near 71. Thursday Night: Partly cloudy, with a low around 48. Friday: Mostly sunny, with a high near 72. Friday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 49. Chance of precipitation is 30%. Saturday: A chance of showers. Partly sunny, with a high near 63. Chance of precipitation is 50%. Saturday Night: Showers likely. Mostly cloudy, with a low around 48. Chance of precipitation is 60%. Sunday: A chance of showers. Mostly cloudy, with a high near 62. Chance of precipitation is 40%. Sunday Night: A chance of showers. Mostly cloudy, with a low around 45. Chance of precipitation is 30%. Monday: A chance of showers. Partly sunny, with a high near 63. Chance of precipitation is 30%. | |
| Chatham PA 39.85°N 75.81°W (Elev. 400 ft) | |
Visit your local NWS office at: https://www.weather.gov/phi/ |
