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    • Today

      Sep 26

      69° /61°
      Pleasant with sunshine
      • Fair
      • for stargazing
      • Cloud Cover: 78%
      • Precip: 78%
      • Hours of Precip: 4
      More
    • Tue

      Sep 27

      72° /54°
      A touch of morning rain
      • Fair
      • for stargazing
      • Cloud Cover: 60%
      • Precip: 25%
      • Hours of Precip: 1
      More
    • Wed

      Sep 28

      73° /61°F
      A p.m. shower in places
      • Poor
      • for stargazing
      • Cloud Cover: 99%
      • Precip: 25%
      • Hours of Precip: 0.5
    • Thu

      Sep 29

      68° /62°
      Mostly cloudy, a little rain
      • Poor
      • for stargazing
      • Cloud Cover: 96%
      • Precip: 58%
      • Hours of Precip: 4.5
      More
    • Fri

      Sep 30

      69° /61°
      A couple of showers
      • Poor
      • for stargazing
      • Cloud Cover: 99%
      • Precip: 57%
      • Hours of Precip: 3.5
      More

    Day

    73°Hi RealFeel® 73° Precipitation 40%
    Times of sun and clouds with a shower in spots in the afternoon
    • NE 6 mph
    • Gusts: 10 mph
    • Max UV Index: 3 (Moderate)
    • Thunderstorms: 20%
    • Precipitation: 0.01 in
    • Rain: 0.01 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0.5 hrs
    • Hours of Rain: 0.5 hrs

    Night

    61°Lo RealFeel® 58° Precipitation 25%
    Low clouds
    • ENE 7 mph
    • Gusts: 12 mph
    • Max UV Index: N/A
    • Thunderstorms: 12%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/28/2015
    High 73° 69° 80° (2015) 80°
    Low 61° 52° 38° (1989) 58°

    Sunrise/Sunset

    • Sunrise: 6:47 AM
    • Sunset: 6:38 PM
    • Duration: 11:51 hr

    Moonrise/Moonset

    • Moonrise: 4:20 AM
    • Moonset: 5:39 PM
    • Duration: 13:19 hr
    Astronomy

    Solunar Information for Stony Brook, NY

    Sat, Oct 1
    New
    Sun, Oct 9
    First
    Sun, Oct 16
    Full
    Sat, Oct 22
    Last

    Stony Brook Weather Report

    Rounds of rain to frequent northeastern US this week

    September 26, 2016; 4:29 AM ET

    Bouts of wet weather will frequent the northeastern United States during the last full week of September. More >

    Wed. Stargazing