Marine Weather Net

Portsmouth, RI Weather Forecast


Marine Forecast: Narragansett Bay


Portsmouth, Rhode Island

 Lat: 41.60N, Lon: 71.25W

Current Conditions Updated: 1050 AM EST SUN JAN 18 2026

Light Snow
Temp: 35°F
  • Humidity:
  • 93%
  • Winds:
  • N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.05 in.
  • Dewpoint:
  • 33°F
  • Heat index:
  • 35°F

  • Sunrise:
  • 7:07 AM EST
  • Sunset:
  • 4:41 PM EST
  • Moonrise:
  • 7:21 AM EST
  • Moonset:
  • 4:30 PM EST

THIS AFTERNOON

SNOW
Hi: 39°F
Lo: 30°F
Precip: 100%

MARTIN LUTHER KING JR DAY

PARTLY SUNNY
Hi: 35°F
Lo: 20°F
Precip: 50%

TUESDAY

SUNNY

Hi: 25°F
Lo: 13°F

WEDNESDAY

MOSTLY SUNNY
Hi: 35°F
Lo: 31°F
Weather Forecast In Detail:
Forecast Issued: 1003 AM EST Sun Jan 18 2026

WINTER WEATHER ADVISORY NOW IN EFFECT FROM 7 AM THIS MORNING TO 7 AM EST MONDAY
This Afternoon...Snow. Snow accumulation around an inch. Highs in the upper 30s. Northwest winds around 5 mph, becoming northeast. Chance of snow near 100 percent.
Tonight...Snow. Patchy freezing fog in the evening. Total snow accumulation of 3 to 5 inches. Near steady temperature in the lower 30s. Northeast winds 5 to 10 mph, becoming north after midnight. Chance of precipitation near 100 percent.
Martin Luther King Jr Day...Partly sunny. A chance of snow in the morning. Highs in the mid 30s. West winds 15 to 20 mph with gusts up to 30 mph. Chance of snow 50 percent.
Monday Night...Partly cloudy. Lows around 20. West winds 15 to 20 mph with gusts up to 35 mph.
Tuesday...Sunny, cold with highs in the mid 20s. West winds 15 to 20 mph with gusts up to 30 mph.
Tuesday Night...Mostly clear. Lows 10 to 15.
Wednesday...Mostly sunny. Not as cool with highs in the mid 30s.
Wednesday Night...Mostly cloudy. Not as cool with lows in the lower 30s.
Thursday...Partly sunny with a chance of snow showers. Near steady temperature in the mid 30s. Chance of snow 30 percent.
Thursday Night...Partly cloudy. Cooler with lows around 20.
Friday...Sunny. Highs in the lower 30s.
Friday Night...Mostly cloudy. Near steady temperature in the upper 20s.
Saturday...Mostly cloudy with a 30 percent chance of snow showers. Highs in the mid 30s.
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