National Weather Service forecast
Stony Brook, New York Weather
Stony Brook 7-Day Forecast
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Overnight53°FPatchy Fog3% chance of precipitation
Patchy fog. Mostly clear, with a low around 53. Southwest wind around 3 mph.
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Wednesday70°FPatchy Fog then Sunny3% chance of precipitation
Patchy fog before 8am. Sunny. High near 70, with temperatures falling to around 65 in the afternoon. Southwest wind 3 to 10 mph.
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Wednesday Night58°FPartly Cloudy2% chance of precipitation
Partly cloudy, with a low around 58. South wind 5 to 8 mph.
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Thursday70°FSlight Chance Rain Showers19% chance of precipitation
A slight chance of rain showers after 7am. Mostly cloudy. High near 70, with temperatures falling to around 65 in the afternoon. South wind 5 to 10 mph. Chance of precipitation is 20%.
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Thursday Night60°FRain Showers84% chance of precipitation
Rain showers. Mostly cloudy, with a low around 60. Southwest wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
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Friday67°FShowers And Thunderstorms91% chance of precipitation
Rain showers before 10am, then showers and thunderstorms. Cloudy. High near 67, with temperatures falling to around 63 in the afternoon. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
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Friday Night55°FShowers And Thunderstorms91% chance of precipitation
Showers and thunderstorms. Cloudy, with a low around 55. Chance of precipitation is 90%.
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Saturday64°FRain Showers Likely60% chance of precipitation
Rain showers likely. Partly sunny, with a high near 64. Chance of precipitation is 60%.
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Saturday Night45°FSlight Chance Rain Showers21% chance of precipitation
A slight chance of rain showers. Partly cloudy, with a low around 45.
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Sunday59°FSlight Chance Rain Showers then Mostly Sunny19% chance of precipitation
A slight chance of rain showers before 7am. Mostly sunny, with a high near 59.
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Sunday Night43°FPartly Cloudy14% chance of precipitation
Partly cloudy, with a low around 43.
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Monday58°FChance Light Rain26% chance of precipitation
A chance of rain after 7am. Mostly sunny, with a high near 58. Chance of precipitation is 30%.
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Monday Night42°FChance Light Rain26% chance of precipitation
A chance of rain. Partly cloudy, with a low around 42. Chance of precipitation is 30%.
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Tuesday59°FSlight Chance Light Rain then Mostly Sunny19% chance of precipitation
A slight chance of rain before 7am. Mostly sunny, with a high near 59.
Issued by the National Weather Service (OKX office), updated .
Stony Brook Hourly Forecast
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Stony Brook Weather Radar
Open the full radar for Stony BrookAbout Stony Brook
- Population (2020 Census)
- 13,467
- Coordinates
- 40.908, -73.127
- Elevation
- 112 ft
- NWS forecast office
- OKX
- Time zone
- America/New York
- Sunrise today
- 6:26 AM EST
- Sunset today
- 4:45 PM EST
- Daylight today
- 10 h 19 min
Stony Brook Weather Questions
What is the weather forecast for Stony Brook, New York?
Overnight: Patchy fog. Mostly clear, with a low around 53. Southwest wind around 3 mph. Wednesday: Patchy fog before 8am. Sunny. High near 70, with temperatures falling to around 65 in the afternoon. Southwest wind 3 to 10 mph.
Will it rain or snow in Stony Brook this week?
The best chance of precipitation is Friday at 91%. Periods with a 30% chance or more: Thursday Night (84%), Friday (91%), Friday Night (91%), Saturday (60%).
How warm and how cold will it get in Stony Brook this week?
The warmest day is Wednesday, with a high near 70°F. The coldest night is Monday Night, with a low near 42°F.
What time are sunrise and sunset in Stony Brook today?
Sunrise is at 6:26 AM EST and sunset is at 4:45 PM EST, for 10 h 19 min of daylight.
Weather near Stony Brook
- Stony Brook University 0 mi
- Head of the Harbor 2 mi
- East Setauket 2 mi
- St. James 3 mi
- Nissequogue 3 mi
- Setauket 3 mi
- Port Jefferson Station 3 mi
- Lake Grove 3 mi