| NWS Forecast for: 3 Miles NW Mercersburg PA Issued by: National Weather Service State College, PA Last Update: 8:06 pm EDT Apr 20, 2026 |  |
Tonight: Widespread frost after 2am. Otherwise, mostly clear, with a low around 29. Northwest wind around 5 mph becoming calm in the evening. Tuesday: Widespread frost before 9am. Otherwise, sunny, with a high near 59. Calm wind becoming south around 6 mph in the afternoon. Tuesday Night: A chance of showers after 2am. Partly cloudy, with a low around 44. South wind around 6 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible. Wednesday: A chance of showers and thunderstorms. Partly sunny, with a high near 69. West wind 3 to 7 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Wednesday Night: Mostly clear, with a low around 47. Light northwest wind. Thursday: Sunny, with a high near 75. Thursday Night: Partly cloudy, with a low around 51. Friday: Mostly sunny, with a high near 77. Friday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 54. Chance of precipitation is 40%. Saturday: Showers likely, mainly after 2pm. Partly sunny, with a high near 69. Chance of precipitation is 60%. Saturday Night: Showers likely. Mostly cloudy, with a low around 50. Chance of precipitation is 60%. Sunday: A chance of showers. Partly sunny, with a high near 65. Chance of precipitation is 40%. Sunday Night: A chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 40%. Monday: A chance of showers. Partly sunny, with a high near 62. Chance of precipitation is 40%. | |
| 3 Miles NW Mercersburg PA 39.87°N 77.95°W (Elev. 997 ft) | |
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