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Setauket, NY Weather Forecast

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Setauket, NY Weather Forecast

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Setauket NY weather - Partly Cloudy - 71°F
Partly Cloudy
71°F
Updated 10:35 pm
Feels Like 76°F
Humidity 96%
Wind WSW 5 mph
Barometer  29.88 in
Dew Point 70°F
Setauket NY weather - Partly Cloudy - 22°C
Partly Cloudy
22°C
Updated 10:35 pm
Feels Like 24°C
Humidity 96%
Wind WSW 8 km/h
Barometer  101.1 kPa
Dew Point 21°C
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Setauket Weather Forecast

TONIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY
Setauket, NY Weather - Tonight Isolated Showers Setauket, NY Weather - Monday Isolated Showers Setauket, NY Weather - Monday Night Clear Setauket, NY Weather - Tuesday Sunny Setauket, NY Weather - Tuesday Night Mostly Clear Setauket, NY Weather - Wednesday Sunny Setauket, NY Weather - Wednesday Night Partly Cloudy Setauket, NY Weather - Thursday Mostly Sunny Setauket, NY Weather - Thursday Night Partly Cloudy Setauket, NY Weather - Friday Partly Sunny Setauket, NY Weather - Friday Night Partly Cloudy Setauket, NY Weather - Saturday Mostly Sunny
Isolated Showers Isolated Showers Clear Sunny Mostly Clear Sunny Partly Cloudy Mostly Sunny Partly Cloudy Partly Sunny Partly Cloudy Mostly Sunny
Lo: 65°FLo: 18°C Hi: 71°FHi: 22°C
 Lo: 55°FLo: 13°C Hi: 71°FHi: 22°C
 Lo: 59°FLo: 15°C Hi: 75°FHi: 24°C
 Lo: 61°FLo: 16°C Hi: 79°FHi: 26°C
 Lo: 65°FLo: 18°C Hi: 79°FHi: 26°C
 Lo: 60°FLo: 16°C Hi: 71°FHi: 22°C
POP: 20% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 840 PM EDT Sun Sep 13 2026 Setauket, NY Weather - WeatherWorld.com

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Setauket Forecast Discussion

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Issued: 820 PM EDT Sun Sep 13 2026

Key Messages

1) A cold front passes through the area late tonight into Monday morning. An isolated shower is possible.

2) Dry and seasonable conditions then expected through midweek. Next chance of rain arrives late Thursday.


Discussion

... .KEY MESSAGE 1... A cold front will pass through the area late tonight into Monday morning. While most locations will remain dry, an isolated shower along or just behind the front is possible. Winds become northerly behind the front and may even begin to gust up ...