Weather Forecast for
Mercersburg, PA

Tonight: Mostly clear, with a low around 67. Light west wind.

Monday: A chance of showers and thunderstorms, mainly before 4pm. Mostly sunny, with a high near 91. Calm wind becoming west 5 to 9 mph in the morning. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 4am. Mostly cloudy, with a low around 70. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny through mid morning, then becoming cloudy, with a high near 86. Calm wind becoming west 5 to 7 mph in the morning. 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 likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers after 11pm. Mostly cloudy, with a low around 66. Light west wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.

Thursday: A chance of showers after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 30%.

Thursday Night: A chance of showers before 8pm. Partly cloudy, with a low around 63. Chance of precipitation is 30%.

Friday: Mostly sunny, with a high near 81.

Friday Night: Partly cloudy, with a low around 61.

Saturday: Mostly sunny, with a high near 80.

Saturday Night: Partly cloudy, with a low around 62.

Sunday: A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 30%.

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