Marine Weather Net

Stony Brook, NY Weather Forecast




Stony Brook, New York

 Lat: 40.91N, Lon: 73.13W

Current Conditions Updated: 656 AM EDT THU JUL 16 2026

Overcast
Temp: 73°F
  • Humidity:
  • 61%
  • Winds:
  • 5 MPH W
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.92 in.
  • Dewpoint:
  • 59°F
  • Heat index:
  • 76°F

  • Sunrise:
  • 5:33 AM EDT
  • Sunset:
  • 8:21 PM EDT
  • Moonrise:
  • 8:05 AM EDT
  • Moonset:
  • 10:03 PM EDT

TODAY

MOSTLY SUNNY
Hi: 89°F
Lo: 70°F

FRIDAY

MOSTLY SUNNY
Hi: 85°F
Lo: 71°F

SATURDAY

PARTLY SUNNY
Hi: 81°F
Lo: 75°F
Precip: 70%

SUNDAY

PARTLY SUNNY
Hi: 85°F
Lo: 65°F
Precip: 50%
Weather Forecast In Detail:
Forecast Issued: 459 AM EDT Thu Jul 16 2026

Today...Mostly sunny. Patchy smoke this morning, then areas of smoke this afternoon. Highs in the upper 80s. West winds 5 to 10 mph. Gusts up to 20 mph this afternoon.
Tonight...Partly cloudy in the evening, then becoming mostly clear. Areas of smoke in the evening, then smoke after midnight. Lows around 70. Northwest winds 10 to 15 mph.
Friday...Smoke in the morning. Mostly sunny. Highs in the mid 80s. Northwest winds around 5 mph.
Friday Night...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s. South winds around 5 mph.
Saturday...Partly sunny with a chance of showers in the morning, then mostly cloudy with showers likely in the afternoon. Highs in the lower 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent.
Saturday Night...Showers with a chance of thunderstorms. Near steady temperature in the mid 70s. Chance of rain 90 percent.
Sunday...Partly sunny. A chance of showers in the morning. Highs in the mid 80s. Chance of rain 50 percent.
Sunday Night...Mostly clear. Lows in the mid 60s.
Monday...Sunny. Highs in the lower 80s.
Monday Night...Partly cloudy. Lows in the upper 60s.
Tuesday...Partly sunny. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 40 percent.
Tuesday Night...Showers likely with a chance of thunderstorms in the evening, then showers likely after midnight. Lows around 70. Chance of rain 60 percent.
Wednesday...Partly sunny. Showers likely, mainly in the morning. Highs in the mid 80s. Chance of rain 60 percent.
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