7-Day Forecast Summary
7-Day Detailed Weather Forecast for South Williamsport
Overnight |
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Temperature: 66°F Wind Speed: 1 mph Wind Direction: S Forecast: Patchy fog after 2am. Partly cloudy, with a low around 66. South wind around 1 mph. |
Thursday |
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Temperature: 89°F Wind Speed: 0 to 5 mph Wind Direction: SW Forecast: Patchy fog before 8am, then a slight chance of showers and thunderstorms between 11am and 1pm, then a chance of showers and thunderstorms between 1pm and 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 89. Southwest wind 0 to 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
Thursday Night |
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Temperature: 68°F Wind Speed: 0 to 3 mph Wind Direction: W Forecast: A slight chance of showers and thunderstorms before 7pm, then patchy fog between 2am and 4am. Partly cloudy, with a low around 68. West wind 0 to 3 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
Friday |
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Temperature: 87°F Wind Speed: 1 to 6 mph Wind Direction: W Forecast: Patchy fog and a slight chance of rain showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 87. West wind 1 to 6 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible. |
Friday Night |
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Temperature: 64°F Wind Speed: 3 mph Wind Direction: NW Forecast: Showers and thunderstorms likely before 2am. Mostly cloudy, with a low around 64. Northwest wind around 3 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible. |
Saturday |
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Temperature: 85°F Wind Speed: 2 to 7 mph Wind Direction: N Forecast: A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
Saturday Night |
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Temperature: 60°F Wind Speed: 2 to 7 mph Wind Direction: N Forecast: A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 60. |
Sunday |
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Temperature: 84°F Wind Speed: 2 mph Wind Direction: E Forecast: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. |
Sunday Night |
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Temperature: 61°F Wind Speed: 1 mph Wind Direction: E Forecast: A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 61. |
Monday |
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Temperature: 87°F Wind Speed: 0 to 5 mph Wind Direction: S Forecast: Mostly sunny, with a high near 87. |
Monday Night |
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Temperature: 64°F Wind Speed: 0 to 3 mph Wind Direction: W Forecast: Mostly clear, with a low around 64. |
Tuesday |
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Temperature: 93°F Wind Speed: 0 to 7 mph Wind Direction: W Forecast: Sunny, with a high near 93. |
Tuesday Night |
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Temperature: 67°F Wind Speed: 2 to 7 mph Wind Direction: W Forecast: Mostly clear, with a low around 67. |
Wednesday |
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Temperature: 94°F Wind Speed: 2 to 10 mph Wind Direction: W Forecast: Mostly sunny, with a high near 94. |

