Marine Weather Net

Block Island, RI Weather Forecast


Marine Forecast: Block Island Sound


Block Island, Rhode Island

 Lat: 41.17N, Lon: 71.58W

Current Conditions Updated: 653 PM EDT SUN NOV 2 2025

Clear


Temp: 45°F
  • Humidity:
  • 79%
  • Winds:
  • N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.26 in.
  • Dewpoint:
  • 39°F
  • Heat index:
  • 45°F

  • Sunrise:
  • 5:44 AM EDT
  • Sunset:
  • 7:57 PM EDT
  • Moonrise:
  • 11:11 PM EDT
  • Moonset:
  • 1:16 PM EDT

TONIGHT

PARTLY CLOUDY
Lo: 67°F

THURSDAY

MOSTLY SUNNY
Hi: 85°F
Lo: 75°F

FRIDAY

MOSTLY SUNNY
Hi: 85°F
Lo: 70°F

SUNDAY

MOSTLY CLEAR
Hi: 85°F
Lo: 65°F
Weather Forecast In Detail:
Forecast Issued: 403 PM EDT Wed Aug 05 2026

HEAT ADVISORY IN EFFECT FROM 11 AM THURSDAY TO 8 PM EDT FRIDAY
Tonight...Partly cloudy this evening, then becoming mostly cloudy. Patchy fog after midnight. Lows in the upper 60s. Southwest winds 5 to 10 mph.
Thursday...Mostly cloudy in the morning, then becoming mostly sunny. Patchy fog in the morning. Humid with highs in the mid 80s. Southwest winds 5 to 10 mph. Gusts up to 20 mph in the afternoon.
Thursday Night...Partly cloudy. Patchy fog after midnight. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph.
Friday...Mostly sunny. Humid with highs in the mid 80s. Southwest winds 5 to 10 mph.
Friday Night...Partly cloudy. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph.
Saturday And Saturday Night...Partly cloudy. Highs in the mid 80s. Lows around 70.
Sunday...Mostly clear. Highs in the mid 80s. Lows in the mid 60s.
Monday...Mostly clear. Highs in the mid 80s. Lows in the mid 60s.
Monday Night...Partly cloudy. Lows in the upper 60s.
Tuesday...Partly sunny with a chance of showers. Highs in the mid 80s. Chance of rain 50 percent.
Tuesday Night...Mostly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 40 percent.
Wednesday...Mostly sunny. Highs in the lower 80s.
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