Marine Weather Net

Osterville, MA Weather Forecast


Marine Forecast: Nantucket Sound


Osterville, Massachusetts

 Lat: 41.63N, Lon: 70.39W

Current Conditions Updated: 656 PM EDT FRI JUN 26 2026

Mostly Clear
Temp: 66°F
  • Humidity:
  • 88%
  • Winds:
  • 10 MPH SW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.97 in.
  • Dewpoint:
  • 62°F
  • Heat index:
  • 66°F

  • Sunrise:
  • 5:07 AM EDT
  • Sunset:
  • 8:18 PM EDT
  • Moonrise:
  • 5:56 PM EDT
  • Moonset:
  • 2:12 AM EDT

TONIGHT

CHANCE OF SHOWERS
Lo: 61°F
Precip: 20%

SATURDAY

PARTLY SUNNY
Hi: 71°F
Lo: 60°F
Precip: 30%

SUNDAY

MOSTLY SUNNY
Hi: 75°F
Lo: 61°F

MONDAY

SUNNY

Hi: 79°F
Lo: 69°F
Weather Forecast In Detail:
Forecast Issued: 703 PM EDT Fri Jun 26 2026

Tonight...Mostly cloudy. A slight chance of showers after midnight. Patchy fog after midnight. Lows in the lower 60s. Southwest winds 5 to 10 mph. Gusts up to 20 mph this evening. Chance of rain 20 percent.
Saturday...Mostly cloudy with a slight chance of showers in the morning, then partly sunny with a chance of showers in the afternoon. Patchy fog in the morning. Humid with highs in the lower 70s. Northwest winds around 5 mph, becoming south in the afternoon. Chance of rain 30 percent.
Saturday Night...Mostly cloudy. Lows around 60. South winds 5 to 10 mph in the evening, becoming light and variable.
Sunday...Mostly sunny. Humid with highs in the mid 70s. Northeast winds around 5 mph.
Sunday Night...Partly cloudy. Lows in the lower 60s. South winds around 5 mph, becoming west after midnight.
Monday...Sunny. Highs in the upper 70s.
Monday Night And Tuesday...Partly cloudy. Lows in the mid 60s. Highs in the lower 80s.
Tuesday Night...Mostly cloudy with a chance of showers. Lows in the upper 60s. Chance of rain 40 percent.
Wednesday...Partly sunny with a chance of showers. Highs in the lower 80s. Chance of rain 30 percent.
Wednesday Night...Partly cloudy. Lows in the lower 70s. Highs in the lower 80s.
Thursday...Partly cloudy. Lows in the lower 70s. Highs in the lower 80s.
Friday...Partly cloudy. Lows in the lower 70s. Highs in the lower 80s.
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