Stony Brook, New York | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Mostly Cloudy
    54°
    Sunday 5/19
    Forecast night icon
    54°
    Mostly Cloudy
    Hourly
    Night Details
    Mostly cloudy. Lows in the mid 50s. Northeast winds 5 to 10 mph.
  • Forecast day icon
    Monday
    Mostly Sunny
    67°
    Forecast night icon
    Night
    Partly Cloudy
    54°
    Monday 5/20
    Day
    67°
    Mostly Sunny
    Forecast day icon
    Night
    54°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the lower 70s. Northeast winds around 5 mph becoming southeast in the afternoon.
    Night Details
    Partly cloudy in the evening then becoming mostly clear. Lows in the lower 50s. South winds 5 to 10 mph.
  • Forecast day icon
    Tuesday
    Mostly Sunny
    70°
    Forecast night icon
    Night
    Partly Cloudy
    59°
    Tuesday 5/21
    Day
    70°
    Mostly Sunny
    Forecast day icon
    Night
    59°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the mid 70s. Southwest winds 5 to 10 mph.
    Night Details
    Partly cloudy. Lows in the upper 50s. Southwest winds 5 to 10 mph.
  • Forecast day icon
    Wednesday
    Sunny
    76°
    Forecast night icon
    Night
    Partly Cloudy
    58°
    Wednesday 5/22
    Day
    76°
    Sunny
    Forecast day icon
    Night
    58°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the mid 70s.
    Night Details
    Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s.
  • Forecast day icon
    Thursday
    30% Chance of Storms
    76°
    Forecast night icon
    Night
    40% Chance of Storms
    62°
    Thursday 5/23
    Day
    76°
    30% Chance of Storms
    Forecast day icon
    Night
    62°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 30 percent.
    Night Details
    Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 50s. Chance of rain 40 percent.
  • Forecast day icon
    Friday
    30% Chance Rain Showers
    75°
    Forecast night icon
    Night
    Partly Cloudy
    56°
    Friday 5/24
    Day
    75°
    30% Chance Rain Showers
    Forecast day icon
    Night
    56°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A chance of showers in the morning. Highs in the mid 70s. Chance of rain 30 percent.
    Night Details
    Mostly clear in the evening then becoming partly cloudy. Lows in the mid 50s.
  • Forecast day icon
    Saturday
    Mostly Sunny
    69°
    Forecast night icon
    Night
    Partly Cloudy
    56°
    Saturday 5/25
    Day
    69°
    Mostly Sunny
    Forecast day icon
    Night
    56°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the lower 70s.
    Night Details
    Partly cloudy. Lows in the mid 50s.
  • Forecast day icon
    Sunday
    30% Chance Rain Showers
    67°
    Forecast night icon
    Night
    30% Chance of Rain
    57°
    Sunday 5/26
    Day
    67°
    30% Chance Rain Showers
    Forecast day icon
    Night
    57°
    30% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A chance of showers in the afternoon. Highs around 70. Chance of rain 30 percent.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 57F. Dew point will be around 54F with an average humidity of 82%. Winds will be 3 mph from the E.
  • Forecast day icon
    Monday
    40% Chance of Rain
    70°
    Forecast night icon
    Night
    40% Chance of Rain
    60°
    Monday 5/27
    Day
    70°
    40% Chance of Rain
    Forecast day icon
    Night
    60°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 70F. Dew point will be around 56F with an average humidity of 74%. Winds will be 3 mph from the SE.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 60F. Dew point will be around 58F with an average humidity of 85%. Winds will be 4 mph from the S.
  • Forecast day icon
    Tuesday
    40% Chance of Rain
    71°
    Forecast night icon
    Night
    50% Chance of Rain
    60°
    Tuesday 5/28
    Day
    71°
    40% Chance of Rain
    Forecast day icon
    Night
    60°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 71F. Dew point will be around 59F with an average humidity of 77%. Winds will be 3 mph from the S.
    Night Details
    Mostly clear with a chance of rain. Chance of precipitation 45%. Low temperature around 60F. Dew point will be around 59F with an average humidity of 85%. Winds will be 4 mph from the S.