Weather forecast for: Valley Forge PA
Last Update: 4:09 pm EDT Sep 11, 2026
Tonight: Mostly clear, with a low around 60. Calm wind becoming northeast around 5 mph.
Saturday: Partly sunny, with a high near 82. East wind 5 to 10 mph becoming south in the afternoon.
Saturday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 68. Southeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday: Showers and possibly a thunderstorm, mainly before 2pm. High near 83. Light and variable wind becoming west 5 to 10 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night: Partly cloudy, with a low around 65. Calm wind becoming west around 5 mph after midnight.
Monday: Sunny, with a high near 77.
Monday Night: Mostly clear, with a low around 54.
Tuesday: Sunny, with a high near 76.
Tuesday Night: Partly cloudy, with a low around 58.
Wednesday: Sunny, with a high near 81.
Wednesday Night: Mostly clear, with a low around 61.
Thursday: A chance of showers. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
Thursday Night: A chance of showers. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Friday: Mostly sunny, with a high near 79.