Marine Weather Net

Mastic Beach, NY Weather Forecast


Marine Forecast: South Shore Bays


Mastic Beach, New York

 Lat: 40.76N, Lon: 72.84W

Current Conditions Updated: 218 AM EDT THU JUN 18 2026

Mostly Clear
Temp: 65°F
  • Humidity:
  • 93%
  • Winds:
  • 9 MPH S
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.82 in.
  • Dewpoint:
  • 63°F
  • Heat index:
  • 65°F

  • Sunrise:
  • 5:18 AM EDT
  • Sunset:
  • 8:24 PM EDT
  • Moonrise:
  • 9:13 AM EDT
  • Moonset:
  • 11:37 PM EDT

THIS AFTERNOON

SUNNY

Hi: 75°F
Lo: 61°F

THURSDAY

CHANCE OF SHOWERS
Hi: 79°F
Lo: 67°F
Precip: 40%

JUNETEENTH

MOSTLY SUNNY
Hi: 79°F
Lo: 65°F

SATURDAY

SUNNY

Hi: 79°F
Lo: 60°F
Weather Forecast In Detail:
Forecast Issued: 221 PM EDT Wed Jun 17 2026

HIGH RIP CURRENT RISK IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING
This Afternoon...Sunny. Highs in the mid 70s. South winds 5 to 10 mph.
Tonight...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 60s. South winds 5 to 10 mph. Gusts up to 20 mph after midnight.
Thursday...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 70s. South winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 40 percent.
Thursday Night...Mostly cloudy with a chance of showers in the evening, then partly cloudy after midnight. Lows in the upper 60s. Southwest winds 15 to 20 mph with gusts up to 35 mph, becoming west 5 to 10 mph with gusts up to 20 mph after midnight. Chance of rain 30 percent.
Juneteenth...Mostly sunny. Highs in the upper 70s. West winds 10 to 15 mph with gusts up to 25 mph.
Friday Night...Clear. Lows in the mid 60s.
Saturday...Sunny. Highs in the upper 70s.
Saturday Night...Clear. Lows around 60.
Sunday...Sunny. Highs in the upper 70s.
Sunday Night...Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the lower 60s. Chance of rain 40 percent.
Monday...Showers. Highs in the mid 70s. Chance of rain 80 percent.
Monday Night...Mostly cloudy. Showers, mainly in the evening. Lows in the lower 60s. Chance of rain 80 percent.
Tuesday...Partly sunny. A chance of showers in the morning. Highs in the upper 70s. Chance of rain 30 percent.
Tuesday Night...Mostly clear. Lows in the lower 60s.
Wednesday...Sunny. Highs in the upper 70s.
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