| NWS Forecast for: 3 Miles NW Mercersburg PA Issued by: National Weather Service State College, PA Last Update: 4:34 pm EDT Jul 13, 2025 |  |
Tonight: Showers and thunderstorms likely, mainly before 2am. Patchy fog before 4am, then patchy fog after 5am. Otherwise, mostly cloudy, with a low around 70. Southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible. Monday: Showers and thunderstorms. Patchy fog before 9am. High near 84. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible. Monday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Tuesday: Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 85. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Tuesday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Wednesday: A slight chance of showers, then showers and thunderstorms likely after 11am. Mostly cloudy, with a high near 87. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Wednesday Night: Showers and thunderstorms likely before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%. Thursday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 60%. Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%. Friday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 50%. Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 30%. Saturday: A chance of showers. Mostly sunny, with a high near 86. Chance of precipitation is 40%. Saturday Night: A chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 30%. Sunday: A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%. | |
| 3 Miles NW Mercersburg PA 39.87°N 77.95°W (Elev. 997 ft) | |
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