Marine Weather Net

Osterville, MA Weather Forecast


Marine Forecast: Nantucket Sound


Osterville, Massachusetts

 Lat: 41.63N, Lon: 70.39W

Current Conditions Updated: 655 PM EDT SAT MAY 16 2026

Clear


Temp: 62°F
  • Humidity:
  • 59%
  • Winds:
  • 15 MPH SW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.97 in.
  • Dewpoint:
  • 48°F
  • Heat index:
  • 62°F

  • Sunrise:
  • 5:19 AM EDT
  • Sunset:
  • 7:53 PM EDT
  • Moonrise:
  • 4:41 AM EDT
  • Moonset:
  • 8:19 PM EDT

TONIGHT

CHANCE OF SHOWERS
Lo: 55°F
Precip: 50%

SUNDAY

SUNNY

Hi: 75°F
Lo: 55°F

MONDAY

MOSTLY SUNNY
Hi: 65°F
Lo: 59°F

TUESDAY

MOSTLY SUNNY
Hi: 71°F
Lo: 59°F
Weather Forecast In Detail:
Forecast Issued: 702 PM EDT Sat May 16 2026

Tonight...Clear this evening, then partly cloudy with a chance of showers after midnight. Lows in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 50 percent.
Sunday...Sunny. Highs in the mid 70s. Southwest winds 10 to 15 mph.
Sunday Night...Mostly clear. Lows in the mid 50s. West winds 5 to 10 mph with gusts up to 20 mph, becoming northeast after midnight.
Monday...Mostly sunny. Highs in the mid 60s. East winds around 5 mph, becoming southeast in the afternoon.
Monday Night...Partly cloudy. Near steady temperature in the upper 50s. South winds 5 to 10 mph. Gusts up to 20 mph after midnight.
Tuesday...Mostly sunny. Highs in the lower 70s.
Tuesday Night...Mostly clear. Lows in the upper 50s.
Wednesday...Mostly sunny. Highs in the lower 70s.
Wednesday Night...Mostly cloudy with a chance of showers. Lows in the mid 50s. Chance of rain 40 percent.
Thursday...Partly sunny with a 40 percent chance of showers. Highs in the lower 60s.
Thursday Night...Mostly cloudy. Lows around 50. Highs around 60.
Friday...Mostly cloudy. Lows around 50. Highs around 60.
Saturday...Partly sunny with a 30 percent chance of showers. Highs in the lower 60s.
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