7-Day Forecast Summary
7-Day Detailed Weather Forecast for South Yarmouth
Overnight |
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Temperature: 71°F Wind Speed: 10 to 14 mph Wind Direction: S Forecast: Patchy fog and showers and thunderstorms likely before 4am, then patchy fog and a chance of showers and thunderstorms between 4am and 5am, then patchy fog and showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 71. South wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible. |
Monday |
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Temperature: 81°F Wind Speed: 14 to 18 mph Wind Direction: S Forecast: Patchy fog and showers and thunderstorms likely before 7am, then patchy fog and showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 81. South wind 14 to 18 mph, with gusts as high as 38 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible. |
Monday Night |
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Temperature: 67°F Wind Speed: 6 to 16 mph Wind Direction: SW Forecast: Showers and thunderstorms likely before 7pm, then patchy fog and showers and thunderstorms likely. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 67. Southwest wind 6 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible. |
Tuesday |
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Temperature: 81°F Wind Speed: 8 mph Wind Direction: W Forecast: Mostly sunny, with a high near 81. West wind around 8 mph. |
Tuesday Night |
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Temperature: 67°F Wind Speed: 2 to 7 mph Wind Direction: SW Forecast: Partly cloudy, with a low around 67. Southwest wind 2 to 7 mph. |
Wednesday |
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Temperature: 81°F Wind Speed: 2 to 8 mph Wind Direction: SW Forecast: Mostly sunny, with a high near 81. Southwest wind 2 to 8 mph. |
Wednesday Night |
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Temperature: 70°F Wind Speed: 7 mph Wind Direction: SW Forecast: Mostly cloudy, with a low around 70. Southwest wind around 7 mph. |
Thursday |
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Temperature: 82°F Wind Speed: 6 to 12 mph Wind Direction: SW Forecast: Mostly sunny, with a high near 82. Southwest wind 6 to 12 mph. |
Thursday Night |
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Temperature: 72°F Wind Speed: 7 to 10 mph Wind Direction: SW Forecast: Partly cloudy, with a low around 72. Southwest wind 7 to 10 mph. |
Friday |
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Temperature: 83°F Wind Speed: 7 to 12 mph Wind Direction: SW Forecast: Mostly sunny, with a high near 83. Southwest wind 7 to 12 mph. |
Friday Night |
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Temperature: 72°F Wind Speed: 6 to 10 mph Wind Direction: SW Forecast: Partly cloudy, with a low around 72. Southwest wind 6 to 10 mph. |
Saturday |
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Temperature: 82°F Wind Speed: 6 to 12 mph Wind Direction: SW Forecast: Mostly sunny, with a high near 82. Southwest wind 6 to 12 mph. |
Saturday Night |
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Temperature: 71°F Wind Speed: 6 to 10 mph Wind Direction: SW Forecast: A slight chance of rain showers after 8pm. Partly cloudy, with a low around 71. Southwest wind 6 to 10 mph. |
Sunday |
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Temperature: 82°F Wind Speed: 6 to 13 mph Wind Direction: SW Forecast: A slight chance of rain showers before 8am. Mostly sunny, with a high near 82. Southwest wind 6 to 13 mph. |

