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: 553 PM EST 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:
  • 6:34 AM EST
  • Sunset:
  • 5:24 PM EST
  • Moonrise:
  • 8:19 AM EST
  • Moonset:
  • 10:31 PM EST

TONIGHT

CHANCE OF SNOW
Lo: 25°F
Precip: 30%

SUNDAY

CHANCE OF SNOW
Hi: 35°F
Lo: 30°F
Precip: 50%

MONDAY

SNOW
Hi: 35°F
Lo: 13°F
Precip: 100%

WEDNESDAY

SNOW
Hi: 39°F
Lo: 29°F
Precip: 60%
Weather Forecast In Detail:
Forecast Issued: 1003 PM EST Sat Feb 21 2026

BLIZZARD WARNING IN EFFECT FROM 4 PM SUNDAY TO 7 AM EST TUESDAY
Overnight...Mostly cloudy. A chance of snow. Lows in the mid 20s. East winds around 5 mph. Chance of snow 30 percent.
Sunday...Cloudy. A chance of snow in the afternoon. Highs in the mid 30s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of snow 50 percent.
Sunday Night...Snow. Areas of fog and freezing fog after midnight. Snow May be heavy at Times after midnight with visibility one quarter mile or less at Times. Snow accumulation of 4 to 8 inches. Blustery. Near steady temperature in the lower 30s. Northeast winds 15 to 25 mph. Gusts up to 40 mph, increasing to 55 mph after midnight. Chance of precipitation near 100 percent.
Monday...Snow. Areas of fog. Snow May be heavy at Times. Visibility one quarter mile or less at Times. Additional heavy snow accumulation. Blustery with highs in the mid 30s. Temperature falling into the mid 20s in the afternoon. North winds 20 to 25 mph with gusts up to 55 mph. Chance of snow near 100 percent.
Monday Night...Snow likely. Additional light snow accumulation possible. Lows in the lower 20s. Northwest winds 15 to 20 mph. Gusts up to 35 mph, Decreasing to 25 mph after midnight. Chance of snow 70 percent.
Tuesday And Tuesday Night...Partly cloudy. Highs in the lower 30s. Lows 10 to 15.
Wednesday...Snow likely with a chance of rain. Highs in the upper 30s. Chance of precipitation 60 percent.
Wednesday Night...Mostly cloudy with a 50 percent chance of rain. Not as cool with lows in the upper 20s.
Thursday...Partly sunny with a chance of rain and snow. Highs in the lower 40s. Chance of precipitation 40 percent.
Thursday Night...Rain and snow likely. Lows in the upper 20s. Chance of precipitation 60 percent.
Friday...A chance of rain and snow likely. Highs around 40. Chance of precipitation 60 percent.
Friday Night...Partly cloudy. Lows in the lower 20s.
Saturday...Sunny. Highs in the lower 40s.
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