Marine Weather Net

Stony Brook, NY Weather Forecast




Stony Brook, New York

 Lat: 40.91N, Lon: 73.13W

Current Conditions Updated: 1256 AM EST FRI DEC 5 2025

Clear


Temp: 24°F
  • Humidity:
  • 49%
  • Winds:
  • 14 MPH N
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.3 in.
  • Dewpoint:
  • 8°F
  • Heat index:
  • 24°F

  • Sunrise:
  • 6:59 AM EST
  • Sunset:
  • 4:23 PM EST
  • Moonrise:
  • 4:51 PM EST
  • Moonset:
  • 8:07 AM EST

TODAY

MOSTLY SUNNY
Hi: 35°F
Lo: 27°F

SATURDAY

CHANCE OF LIGHT RAIN
Hi: 41°F
Lo: 29°F
Precip: 20%

SUNDAY

MOSTLY SUNNY
Hi: 41°F
Lo: 25°F

MONDAY

MOSTLY SUNNY
Hi: 35°F
Lo: 20°F
Weather Forecast In Detail:
Forecast Issued: 108 AM EST Fri Dec 05 2025

Today...Mostly sunny. Highs in the mid 30s. East winds around 5 mph.
Tonight...Mostly cloudy. A slight chance of light freezing rain or light snow in the evening, then a chance of light snow or light rain or light freezing rain after midnight. Lows in the upper 20s. Northeast winds around 5 mph. Chance of precipitation 30 percent.
Saturday...Mostly cloudy. A slight chance of light rain or light freezing rain or light snow in the morning. Highs in the lower 40s. West winds 5 to 10 mph. Chance of precipitation 20 percent.
Saturday Night...Mostly cloudy in the evening, then clearing. Lows in the upper 20s. West winds 5 to 10 mph.
Sunday...Mostly sunny in the morning, then becoming mostly cloudy. Highs in the lower 40s. North winds around 5 mph, becoming east in the afternoon.
Sunday Night...Mostly cloudy. A chance of rain and snow in the evening. Lows in the mid 20s. Chance of precipitation 30 percent.
Monday...Mostly sunny. Highs in the mid 30s.
Monday Night...Mostly clear. Lows around 20.
Tuesday...Partly sunny. Highs in the upper 30s.
Tuesday Night...Mostly cloudy. Lows around 30.
Wednesday...Mostly cloudy. A chance of rain in the afternoon. Highs in the upper 40s. Chance of rain 30 percent.
Wednesday Night...Rain likely, mainly in the evening. Lows in the mid 30s. Chance of rain 60 percent.
Thursday...Mostly cloudy in the morning, then becoming partly sunny. A 50 percent chance of rain. Highs in the mid 40s.
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