Marine Weather Net

Greenwich, CT Weather Forecast




Greenwich, Connecticut

 Lat: 41.03N, Lon: 73.63W

Current Conditions Updated: 756 PM EST SUN DEC 7 2025

Mostly Cloudy
Temp: 38°F
  • Humidity:
  • 54%
  • Winds:
  • 7 MPH W
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.01 in.
  • Dewpoint:
  • 23°F
  • Heat index:
  • 38°F

  • Sunrise:
  • 7:04 AM EST
  • Sunset:
  • 4:24 PM EST
  • Moonrise:
  • 7:22 PM EST
  • Moonset:
  • 10:06 AM EST

TONIGHT

CLEARING

Lo: 21°F

MONDAY

MOSTLY SUNNY
Hi: 29°F
Lo: 14°F

TUESDAY

SUNNY

Hi: 39°F
Lo: 27°F

WEDNESDAY

CHANCE OF RAIN
Hi: 45°F
Lo: 31°F
Precip: 50%
Weather Forecast In Detail:
Forecast Issued: 541 PM EST Sun Dec 07 2025

Tonight...Mostly cloudy this evening, then clearing. Lows in the lower 20s. West winds 5 to 10 mph with gusts up to 20 mph, becoming northwest 10 to 15 mph with gusts up to 30 mph after midnight.
Monday...Mostly sunny. Cold with highs in the upper 20s. North winds 15 to 20 mph with gusts up to 30 mph.
Monday Night...Mostly cloudy in the evening, then clearing. Lows around 14. North winds 5 to 10 mph.
Tuesday...Sunny in the morning, then becoming mostly cloudy. Highs in the upper 30s. East winds around 5 mph, becoming south with gusts up to 20 mph in the afternoon.
Tuesday Night...Mostly cloudy. A slight chance of rain and snow in the evening, then a slight chance of snow after midnight. Not as cool with lows in the upper 20s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 20 percent.
Wednesday...Mostly cloudy. A chance of rain. Highs in the mid 40s. Chance of rain 50 percent.
Wednesday Night...Mostly cloudy. A chance of rain in the evening. Lows in the lower 30s. Chance of rain 50 percent.
Thursday...Mostly sunny. Highs in the lower 40s.
Thursday Night...Mostly cloudy. A chance of snow and rain after midnight. Lows in the mid 20s. Chance of precipitation 30 percent.
Friday...Partly sunny with a chance of snow and rain. Highs in the upper 30s. Chance of precipitation 30 percent.
Friday Night...Mostly cloudy with a 30 percent chance of snow. Lows in the lower 20s.
Saturday...Partly sunny. Highs in the lower 30s.
Saturday Night...Mostly cloudy in the evening, then becoming partly cloudy. Lows around 20.
Sunday...Mostly sunny. Highs in the lower 30s.
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