Weather in Mercersburg, Pennsylvania, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Mercersburg
Overnight |
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Temperature: 71°F Wind Speed: 1 mph Wind Direction: S Forecast: A chance of rain showers before 2am, then patchy fog. Mostly cloudy, with a low around 71. South wind around 1 mph. Chance of precipitation is 30%. New rainfall amounts between a quarter and half of an inch possible. |
Thursday |
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Temperature: 93°F Wind Speed: 1 to 7 mph Wind Direction: W Forecast: Patchy fog before 9am, then a slight chance of showers and thunderstorms between 2pm and 4pm. Some of the storms could be severe. Mostly sunny, with a high near 93. Heat index values as high as 101. West wind 1 to 7 mph. Chance of precipitation is 20%. |
Thursday Night |
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Temperature: 72°F Wind Speed: 1 to 5 mph Wind Direction: W Forecast: A chance of rain showers after 8pm. Mostly cloudy, with a low around 72. West wind 1 to 5 mph. Chance of precipitation is 40%. |
Friday |
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Temperature: 89°F Wind Speed: 1 to 7 mph Wind Direction: W Forecast: A chance of rain showers before 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 89. West wind 1 to 7 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible. |
Friday Night |
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Temperature: 67°F Wind Speed: 2 to 6 mph Wind Direction: NW Forecast: Showers and thunderstorms likely before 2am. Partly cloudy, with a low around 67. Northwest wind 2 to 6 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible. |
Saturday |
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Temperature: 84°F Wind Speed: 2 to 6 mph Wind Direction: N Forecast: Mostly sunny, with a high near 84. |
Saturday Night |
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Temperature: 59°F Wind Speed: 5 mph Wind Direction: N Forecast: Partly cloudy, with a low around 59. |
Sunday |
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Temperature: 79°F Wind Speed: 5 mph Wind Direction: NE Forecast: Sunny, with a high near 79. |
Sunday Night |
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Temperature: 59°F Wind Speed: 1 to 5 mph Wind Direction: NE Forecast: Mostly clear, with a low around 59. |
Labor Day |
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Temperature: 80°F Wind Speed: 3 mph Wind Direction: SE Forecast: Mostly sunny, with a high near 80. |
Monday Night |
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Temperature: 61°F Wind Speed: 3 mph Wind Direction: SE Forecast: Partly cloudy, with a low around 61. |
Tuesday |
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Temperature: 84°F Wind Speed: 1 to 5 mph Wind Direction: S Forecast: Mostly sunny, with a high near 84. |
Tuesday Night |
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Temperature: 63°F Wind Speed: 3 mph Wind Direction: S Forecast: Partly cloudy, with a low around 63. |
Wednesday |
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Temperature: 86°F Wind Speed: 2 to 6 mph Wind Direction: SW Forecast: Mostly sunny, with a high near 86. |