Marine Weather Net

Stony Brook, NY Weather Forecast




Stony Brook, New York

 Lat: 40.91N, Lon: 73.13W

Current Conditions Updated: 156 AM EDT WED OCT 29 2025

Mostly Cloudy
Temp: 51°F
  • Humidity:
  • 71%
  • Winds:
  • 13 MPH NNE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.13 in.
  • Dewpoint:
  • 42°F
  • Heat index:
  • 51°F

  • Sunrise:
  • 7:17 AM EDT
  • Sunset:
  • 5:51 PM EDT
  • Moonrise:
  • 2:23 PM EDT
  • Moonset:
  • N/A EDT

TODAY

MOSTLY CLOUDY
Hi: 55°F
Lo: 47°F

THURSDAY

CHANCE OF SHOWERS
Hi: 61°F
Lo: 47°F
Precip: 100%

FRIDAY

PARTLY SUNNY
Hi: 59°F
Lo: 45°F
Precip: 40%

SATURDAY

SUNNY

Hi: 59°F
Lo: 41°F
Weather Forecast In Detail:
Forecast Issued: 156 AM EDT Wed Oct 29 2025

Today...Mostly cloudy. A slight chance of drizzle this morning. Highs in the mid 50s. Northeast winds 15 to 20 mph.
Tonight...Mostly cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the upper 40s. Northeast winds 15 to 20 mph. Chance of rain 50 percent.
Thursday...A chance of showers in the morning, then showers in the afternoon. Breezy with highs in the lower 60s. East winds 15 to 25 mph with gusts up to 35 mph. Chance of rain near 100 percent.
Thursday Night...Showers with a slight chance of thunderstorms in the evening, then showers after midnight. Breezy with lows in the upper 40s. East winds 20 to 25 mph with gusts up to 35 mph, becoming south 15 to 20 mph after midnight. Chance of rain near 100 percent.
Friday...Partly sunny. A chance of showers, mainly in the morning. Breezy with highs in the upper 50s. West winds 15 to 25 mph. Gusts up to 30 mph, increasing to 45 mph in the afternoon. Chance of rain 40 percent.
Friday Night...Partly cloudy in the evening, then clearing. Breezy with lows in the mid 40s.
Saturday...Sunny, breezy with highs in the upper 50s.
Saturday Night...Partly cloudy. Lows in the lower 40s.
Sunday...Mostly sunny. Highs in the mid 50s.
Sunday Night...Partly cloudy. Lows in the lower 40s.
Monday...Partly sunny with a 40 percent chance of showers. Highs in the upper 50s.
Monday Night...Mostly cloudy with a 50 percent chance of showers. Lows in the mid 40s.
Tuesday...Partly sunny. A chance of showers in the morning. Highs around 60. Chance of rain 40 percent.
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