Weather in Mercersburg, Pennsylvania, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Mercersburg
Today |
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Temperature: 92°F Wind Speed: 3 to 8 mph Wind Direction: W Forecast: A chance of rain showers before 4pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 92. West wind 3 to 8 mph. Chance of precipitation is 30%. |
Tonight |
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Temperature: 72°F Wind Speed: 0 to 6 mph Wind Direction: NW Forecast: A slight chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 72. Northwest wind 0 to 6 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
Wednesday |
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Temperature: 91°F Wind Speed: 0 to 3 mph Wind Direction: E Forecast: A slight chance of rain showers between 7am and 11am. Partly sunny, with a high near 91. Heat index values as high as 100. East wind 0 to 3 mph. Chance of precipitation is 20%. |
Wednesday Night |
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Temperature: 73°F Wind Speed: 2 mph Wind Direction: S Forecast: A chance of showers and thunderstorms before 11pm, then a chance of showers and thunderstorms between 11pm and 2am. Some of the storms could be severe. Mostly cloudy, with a low around 73. South wind around 2 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
Thursday |
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Temperature: 92°F Wind Speed: 1 to 7 mph Wind Direction: W Forecast: Mostly sunny, with a high near 92. West wind 1 to 7 mph. |
Thursday Night |
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Temperature: 72°F Wind Speed: 1 to 6 mph Wind Direction: NW Forecast: A slight chance of showers and thunderstorms between 8pm and 2am. Some of the storms could be severe. Partly cloudy, with a low around 72. Chance of precipitation is 20%. |
Friday |
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Temperature: 88°F Wind Speed: 1 to 7 mph Wind Direction: NW Forecast: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. |
Friday Night |
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Temperature: 66°F Wind Speed: 2 to 6 mph Wind Direction: NW Forecast: A slight chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 66. |
Saturday |
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Temperature: 83°F Wind Speed: 2 to 6 mph Wind Direction: N Forecast: Mostly sunny, with a high near 83. |
Saturday Night |
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Temperature: 61°F Wind Speed: 5 mph Wind Direction: NE Forecast: Partly cloudy, with a low around 61. |
Sunday |
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Temperature: 81°F Wind Speed: 5 mph Wind Direction: NE Forecast: Mostly sunny, with a high near 81. |
Sunday Night |
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Temperature: 61°F Wind Speed: 3 mph Wind Direction: E Forecast: A slight chance of rain showers after 8pm. Partly cloudy, with a low around 61. |
Labor Day |
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Temperature: 82°F Wind Speed: 5 mph Wind Direction: S Forecast: A slight chance of rain showers. Mostly sunny, with a high near 82. |
Monday Night |
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Temperature: 59°F Wind Speed: 3 mph Wind Direction: NE Forecast: A slight chance of rain showers before 8pm. Partly cloudy, with a low around 59. |