Weather in Holtsville, New York, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Holtsville
This Afternoon |
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Temperature: 87°F Wind Speed: 13 mph Wind Direction: S Forecast: Sunny. High near 87, with temperatures falling to around 84 in the afternoon. Heat index values as high as 97. South wind around 13 mph. |
Tonight |
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Temperature: 75°F Wind Speed: 5 to 12 mph Wind Direction: SW Forecast: Partly cloudy, with a low around 75. Southwest wind 5 to 12 mph. |
Friday |
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Temperature: 88°F Wind Speed: 3 to 10 mph Wind Direction: SW Forecast: Sunny. High near 88, with temperatures falling to around 86 in the afternoon. Heat index values as high as 100. Southwest wind 3 to 10 mph. |
Friday Night |
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Temperature: 74°F Wind Speed: 5 to 9 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and midnight, then a chance of showers and thunderstorms between midnight and 2am. Mostly cloudy, with a low around 74. Southwest wind 5 to 9 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
Saturday |
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Temperature: 88°F Wind Speed: 5 to 12 mph Wind Direction: SW Forecast: Mostly sunny, with a high near 88. Southwest wind 5 to 12 mph. |
Saturday Night |
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Temperature: 74°F Wind Speed: 5 to 10 mph Wind Direction: SW Forecast: A slight chance of rain showers between 8pm and midnight. Partly cloudy, with a low around 74. |
Sunday |
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Temperature: 89°F Wind Speed: 5 to 10 mph Wind Direction: SW Forecast: Sunny, with a high near 89. |
Sunday Night |
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Temperature: 73°F Wind Speed: 2 to 8 mph Wind Direction: W Forecast: Mostly clear, with a low around 73. |
Monday |
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Temperature: 88°F Wind Speed: 2 to 10 mph Wind Direction: W Forecast: Sunny, with a high near 88. |
Monday Night |
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Temperature: 74°F Wind Speed: 5 to 9 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. Chance of precipitation is 30%. |
Tuesday |
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Temperature: 89°F Wind Speed: 7 to 14 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 30%. |
Tuesday Night |
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Temperature: 72°F Wind Speed: 6 to 10 mph Wind Direction: W Forecast: A chance of rain showers before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 40%. |
Wednesday |
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Temperature: 85°F Wind Speed: 8 mph Wind Direction: W Forecast: Partly sunny, with a high near 85. |
Wednesday Night |
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Temperature: 69°F Wind Speed: 3 to 7 mph Wind Direction: W Forecast: A chance of rain showers after 8pm. Partly cloudy, with a low around 69. |