Marine Weather Net

Jamestown, RI Weather Forecast


Marine Forecast: Narragansett Bay


Jamestown, Rhode Island

 Lat: 41.48N, Lon: 71.37W

Current Conditions Updated: 653 PM EDT SUN NOV 2 2025

Clear


Temp: 50°F
  • Humidity:
  • 51%
  • Winds:
  • 5 MPH WNW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.26 in.
  • Dewpoint:
  • 33°F
  • Heat index:
  • 50°F

  • Sunrise:
  • 5:10 AM EDT
  • Sunset:
  • 8:15 PM EDT
  • Moonrise:
  • 12:16 AM EDT
  • Moonset:
  • 10:43 AM EDT

TODAY

PARTLY SUNNY
Hi: 79°F
Lo: 61°F

SUNDAY

PARTLY SUNNY
Hi: 85°F
Lo: 59°F
Precip: 50%

MONDAY

SUNNY

Hi: 71°F
Lo: 61°F

Weather Forecast In Detail:
Forecast Issued: 402 AM EDT Sat Jun 06 2026

Today...Partly sunny. Highs in the upper 70s. Southwest winds 10 to 15 mph. Gusts up to 25 mph this afternoon.
Tonight...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Patchy fog after midnight. Some thunderstorms May be severe with damaging winds, small hail, frequent lightning, and heavy rainfall. Lows in the lower 60s. Southwest winds 10 to 15 mph. Chance of rain 40 percent.
Sunday...Sunny in the morning, then partly sunny with a chance of showers in the afternoon. Highs in the mid 80s. West winds 10 to 15 mph. Chance of rain 50 percent.
Sunday Night...Partly cloudy with a 30 percent chance of showers. Lows in the upper 50s. North winds 5 to 10 mph.
Monday...Sunny, cooler with highs in the lower 70s. North winds 10 to 15 mph, becoming northeast in the afternoon.
Monday Night...Mostly clear. Lows around 60. Highs in the lower 80s.
Tuesday...Mostly clear. Lows around 60. Highs in the lower 80s.
Wednesday...Mostly clear. Lows around 60. Highs in the lower 80s.
Wednesday Night And Thursday...Mostly cloudy. A 30 percent chance of showers. Lows in the lower 60s. Highs in the upper 70s.
Thursday Night And Friday...Partly cloudy. Lows in the lower 60s. Highs in the lower 80s.
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