7-Day Forecast Summary
7-Day Detailed Weather Forecast for Williamsport
Today |
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Temperature: 94°F Wind Speed: 3 to 8 mph Wind Direction: SW Forecast: Sunny, with a high near 94. Heat index values as high as 100. Southwest wind 3 to 8 mph. |
Tonight |
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Temperature: 73°F Wind Speed: 2 to 7 mph Wind Direction: SW Forecast: Mostly clear, with a low around 73. Southwest wind 2 to 7 mph. |
Thursday |
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Temperature: 95°F Wind Speed: 5 to 9 mph Wind Direction: W Forecast: A slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 95. Heat index values as high as 101. West wind 5 to 9 mph. Chance of precipitation is 20%. |
Thursday Night |
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Temperature: 73°F Wind Speed: 1 to 6 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms before 11pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Southwest wind 1 to 6 mph. Chance of precipitation is 40%. |
Friday |
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Temperature: 91°F Wind Speed: 2 to 8 mph Wind Direction: W Forecast: A slight chance of rain showers before 8am, then a chance of showers and thunderstorms between 8am and 11am, then a chance of showers and thunderstorms. Partly sunny, with a high near 91. West wind 2 to 8 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
Friday Night |
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Temperature: 70°F Wind Speed: 2 to 7 mph Wind Direction: N Forecast: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 20%. |
Saturday |
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Temperature: 86°F Wind Speed: 2 to 8 mph Wind Direction: NE Forecast: A slight chance of rain showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%. |
Saturday Night |
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Temperature: 63°F Wind Speed: 5 to 8 mph Wind Direction: NE Forecast: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 63. Chance of precipitation is 40%. |
Sunday |
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Temperature: 83°F Wind Speed: 5 to 8 mph Wind Direction: NE Forecast: Mostly sunny, with a high near 83. |
Sunday Night |
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Temperature: 61°F Wind Speed: 3 to 8 mph Wind Direction: NE Forecast: Partly cloudy, with a low around 61. |
Labor Day |
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Temperature: 85°F Wind Speed: 6 mph Wind Direction: NE Forecast: Mostly sunny, with a high near 85. |
Monday Night |
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Temperature: 64°F Wind Speed: 6 mph Wind Direction: NE Forecast: Partly cloudy, with a low around 64. |
Tuesday |
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Temperature: 86°F Wind Speed: 6 mph Wind Direction: NW Forecast: Mostly sunny, with a high near 86. |
Tuesday Night |
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Temperature: 64°F Wind Speed: 6 mph Wind Direction: E Forecast: Partly cloudy, with a low around 64. |

