Marine Weather Net

Portsmouth, RI Weather Forecast


Marine Forecast: Narragansett Bay


Portsmouth, Rhode Island

 Lat: 41.60N, Lon: 71.25W

Current Conditions Updated: 950 PM EDT THU APR 16 2026

Clear


Temp: 55°F
  • Humidity:
  • 81%
  • Winds:
  • 16 MPH S
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.74 in.
  • Dewpoint:
  • 50°F
  • Heat index:
  • 55°F

  • Sunrise:
  • 6:02 AM EDT
  • Sunset:
  • 7:25 PM EDT
  • Moonrise:
  • 5:20 AM EDT
  • Moonset:
  • 6:50 PM EDT

TONIGHT

PARTLY CLOUDY
Lo: 51°F

FRIDAY

CHANCE OF T-STORM
Hi: 70°F
Lo: 49°F
Precip: 50%

SATURDAY

MOSTLY CLOUDY
Hi: 59°F
Lo: 45°F

SUNDAY

SHOWERS
Hi: 55°F
Lo: 39°F
Precip: 70%
Weather Forecast In Detail:
Forecast Issued: 703 PM EDT Thu Apr 16 2026

Tonight...Partly cloudy this evening, then becoming mostly cloudy. Patchy fog. Lows in the lower 50s. South winds 5 to 10 mph.
Friday...Cloudy with a chance of showers with a slight chance of thunderstorms. Patchy fog in the morning. Highs around 70. Temperature falling into the lower 60s in the afternoon. Northwest winds around 5 mph, becoming northeast in the afternoon. Chance of rain 50 percent.
Friday Night...Mostly cloudy. A chance of showers in the evening. Lows in the upper 40s. Northeast winds 5 to 10 mph. Chance of rain 40 percent.
Saturday...Mostly cloudy. Cooler with highs in the upper 50s. Northeast winds 5 to 10 mph.
Saturday Night...Mostly cloudy. Lows in the mid 40s. East winds 5 to 10 mph, becoming south after midnight.
Sunday...Showers likely. Highs in the mid 50s. Chance of rain 70 percent.
Sunday Night...Showers likely. Lows in the upper 30s. Chance of rain 70 percent.
Monday...Mostly sunny. Highs in the upper 40s.
Monday Night And Tuesday...Mostly clear. Lows in the lower 30s. Highs in the upper 40s.
Tuesday Night And Wednesday...Mostly cloudy. Lows in the lower 40s. Highs in the upper 50s.
Wednesday Night And Thursday...Partly cloudy. Lows in the lower 40s. Highs in the upper 50s.
SHARE THIS PAGE: