Setauket, NY Weather Forecast

Feedback E-mail the Weather

Quick Weather Clicks

Setauket, NY Weather Forecast

Current Conditions

Settings
Setauket NY weather  - Clear - 64°F
Clear
64°F
Updated 11:47 pm
Feels Like 57°F
Humidity 49%
Wind N 12 mph
Barometer  30.22 in
Dew Point 45°F
Setauket NY weather  - Clear - 18°C
Clear
18°C
Updated 11:47 pm
Feels Like 14°C
Humidity 49%
Wind N 19 km/h
Barometer  102.3 kPa
Dew Point 7°C

Setauket Weather Forecast

TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY
Setauket, NY Weather - Tonight Clear Setauket, NY Weather - Tuesday Sunny Setauket, NY Weather - Tuesday Night Partly Cloudy Setauket, NY Weather - Wednesday Sunny Setauket, NY Weather - Wednesday Night Partly Cloudy Setauket, NY Weather - Thursday Mostly Sunny Setauket, NY Weather - Thursday Night Mostly Cloudy Setauket, NY Weather - Friday Partly Sunny Setauket, NY Weather - Friday Night Partly Cloudy Setauket, NY Weather - Saturday Mostly Sunny Setauket, NY Weather - Saturday Night Chance Of Showers Setauket, NY Weather - Sunday Chance Of Showers
Clear Sunny Partly Cloudy Sunny Partly Cloudy Mostly Sunny Mostly Cloudy Partly Sunny Partly Cloudy Mostly Sunny Chance of Showers Chance of Showers
Lo: 55°FLo: 13°C Hi: 71°FHi: 22°C
Lo: 59°FLo: 15°C Hi: 79°FHi: 26°C
Lo: 65°FLo: 18°C Hi: 79°FHi: 26°C
Lo: 65°FLo: 18°C Hi: 79°FHi: 26°C
Lo: 61°FLo: 16°C Hi: 75°FHi: 24°C
Lo: 61°FLo: 16°C Hi: 75°FHi: 24°C
POP: 40% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 803 PM EDT Mon Sep 14 2026 Setauket, NY Weather - WeatherWorld.com

Trending Headlines

Setauket Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Setauket Quick Facts

National Two Day Weather Forecast


E-mail the Setauket Weather Forecast

Voice your opinion or tell us about page issues...

Setauket Forecast Discussion

Meteorlogic Glosserator
Instant definitions for any meteorological term.

Issued: 820 PM EDT Mon Sep 14 2026

Key Messages

1) Dry and sunny conditions through mid week. No hazardous weather expected.

2) A couple of chances of rain in the mid to long term starting Thursday night. Limited to no impacts expected.


Discussion

... .KEY MESSAGE 1... N winds will continue to diminish tonight under clear skies as high pressure builds in from the west. The light winds and clear skies will promote good radiational cooling. Temps tonight will be on the cooler side of the guidance, with 40s inland and in the Long Island...