7-Day Forecast Summary
7-Day Detailed Weather Forecast for Smithtown
This Afternoon |
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Temperature: 77°F Wind Speed: 3 mph Wind Direction: NW Forecast: Sunny. High near 77, with temperatures falling to around 75 in the afternoon. Northwest wind around 3 mph. |
Tonight |
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Temperature: 62°F Wind Speed: 5 mph Wind Direction: SW Forecast: Mostly clear, with a low around 62. Southwest wind around 5 mph. |
Sunday |
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Temperature: 81°F Wind Speed: 3 to 12 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms after 5pm. Mostly sunny. High near 81, with temperatures falling to around 78 in the afternoon. Southwest wind 3 to 12 mph. Chance of precipitation is 30%. |
Sunday Night |
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Temperature: 66°F Wind Speed: 2 to 10 mph Wind Direction: SW Forecast: Showers and thunderstorms likely. Mostly cloudy. Low around 66, with temperatures rising to around 68 overnight. Southwest wind 2 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible. |
Monday |
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Temperature: 80°F Wind Speed: 5 mph Wind Direction: N Forecast: A slight chance of rain showers before 8am. Partly sunny. High near 80, with temperatures falling to around 77 in the afternoon. North wind around 5 mph. Chance of precipitation is 20%. |
Monday Night |
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Temperature: 66°F Wind Speed: 5 mph Wind Direction: S Forecast: A chance of rain showers after 8pm. Mostly cloudy. Low around 66, with temperatures rising to around 68 overnight. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
Tuesday |
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Temperature: 81°F Wind Speed: 2 to 7 mph Wind Direction: S Forecast: A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Chance of precipitation is 50%. |
Tuesday Night |
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Temperature: 68°F Wind Speed: 3 to 7 mph Wind Direction: E Forecast: A chance of showers and thunderstorms before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 68. Chance of precipitation is 60%. |
Wednesday |
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Temperature: 82°F Wind Speed: 3 to 7 mph Wind Direction: E Forecast: A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 82. Chance of precipitation is 40%. |
Wednesday Night |
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Temperature: 68°F Wind Speed: 7 mph Wind Direction: S Forecast: Showers and thunderstorms likely. Mostly cloudy, with a low around 68. Chance of precipitation is 60%. |
Thursday |
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Temperature: 83°F Wind Speed: 5 to 9 mph Wind Direction: SW Forecast: Rain showers likely before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 83. Chance of precipitation is 60%. |
Thursday Night |
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Temperature: 66°F Wind Speed: 7 mph Wind Direction: W Forecast: A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%. |
Friday |
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Temperature: 79°F Wind Speed: 8 mph Wind Direction: N Forecast: A slight chance of rain showers. Mostly sunny, with a high near 79. |
Friday Night |
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Temperature: 63°F Wind Speed: 7 mph Wind Direction: N Forecast: A chance of rain showers. Partly cloudy, with a low around 63. |

