Marine Weather Net

Winthrop, MA Weather Forecast


Marine Forecast: Boston Harbor


Winthrop, Massachusetts

 Lat: 42.38N, Lon: 70.98W

Current Conditions Updated: 454 AM EDT SUN JUL 5 2026

Mostly Cloudy
Temp: 70°F
  • Humidity:
  • 73%
  • Winds:
  • 6 MPH NE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.93 in.
  • Dewpoint:
  • 61°F
  • Heat index:
  • 73°F

  • Sunrise:
  • 5:11 AM EDT
  • Sunset:
  • 8:22 PM EDT
  • Moonrise:
  • 11:53 PM EDT
  • Moonset:
  • 10:44 AM EDT

TODAY

PARTLY SUNNY
Hi: 81°F
Lo: 65°F

MONDAY

CHANCE OF SHOWERS
Hi: 71°F
Lo: 61°F
Precip: 40%

TUESDAY

SHOWERS
Lo: 61°F
Precip: 80%

WEDNESDAY

PARTLY SUNNY
Hi: 79°F
Lo: 61°F
Precip: 30%
Weather Forecast In Detail:
Forecast Issued: 402 AM EDT Sun Jul 05 2026

Today...Partly sunny. Not as warm with highs in the lower 80s. Northeast winds 5 to 10 mph, becoming east this afternoon.
Tonight...Mostly cloudy with a 20 percent chance of showers. Lows in the mid 60s. Southeast winds 5 to 10 mph.
Monday...Cloudy with a 40 percent chance of showers. Highs in the lower 70s. East winds 10 to 15 mph.
Monday Night...Showers likely. Patchy fog. Locally heavy rainfall possible. Lows in the lower 60s. East winds 10 to 15 mph. Chance of rain 70 percent.
Tuesday...Showers. Patchy fog. Locally heavy rainfall possible. Near steady temperature in the lower 60s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 80 percent.
Tuesday Night...Mostly cloudy with a 50 percent chance of showers. Lows in the lower 60s.
Wednesday...Partly sunny with a 30 percent chance of showers. Not as cool with highs in the upper 70s.
Wednesday Night...Partly cloudy. Lows in the lower 60s.
Thursday...Sunny. Highs in the mid 80s.
Thursday Night...Partly cloudy. Lows in the upper 60s.
Friday...Partly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 50 percent.
Friday Night...Mostly cloudy with a chance of showers and thunderstorms. Lows in the mid 60s. Chance of rain 40 percent.
Saturday...Partly sunny with a chance of showers. Highs in the lower 80s. Chance of rain 40 percent.
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