National Weather Service forecast
Old Greenwich, Connecticut Weather
Old Greenwich 7-Day Forecast
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Overnight52°FPatchy Fog3% chance of precipitation
Patchy fog. Mostly clear, with a low around 52. Southwest wind around 6 mph.
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Wednesday72°FPatchy Fog then Sunny3% chance of precipitation
Patchy fog before 8am. Sunny. High near 72, with temperatures falling to around 67 in the afternoon. Southwest wind 3 to 12 mph.
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Wednesday Night59°FPartly Cloudy2% chance of precipitation
Partly cloudy, with a low around 59. Southwest wind 5 to 9 mph.
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Thursday71°FChance Rain Showers40% chance of precipitation
A chance of rain showers after 7am. Mostly cloudy. High near 71, with temperatures falling to around 68 in the afternoon. South wind 5 to 10 mph. Chance of precipitation is 40%.
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Thursday Night62°FRain Showers82% chance of precipitation
Rain showers. Mostly cloudy, with a low around 62. South wind 5 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
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Friday68°FShowers And Thunderstorms85% chance of precipitation
Rain showers before 10am, then showers and thunderstorms. Cloudy. High near 68, with temperatures falling to around 65 in the afternoon. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
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Friday Night56°FShowers And Thunderstorms85% chance of precipitation
Showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 90%.
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Saturday65°FChance Rain Showers53% chance of precipitation
A chance of rain showers. Partly sunny, with a high near 65. Chance of precipitation is 50%.
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Saturday Night47°FSlight Chance Rain Showers19% chance of precipitation
A slight chance of rain showers. Partly cloudy, with a low around 47.
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Sunday60°FSlight Chance Rain Showers then Mostly Sunny18% chance of precipitation
A slight chance of rain showers before 7am. Mostly sunny, with a high near 60.
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Sunday Night43°FPartly Cloudy14% chance of precipitation
Partly cloudy, with a low around 43.
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Monday59°FSlight Chance Light Rain24% chance of precipitation
A slight chance of rain after 7am. Mostly sunny, with a high near 59.
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Monday Night43°FChance Light Rain27% chance of precipitation
A chance of rain. Partly cloudy, with a low around 43. Chance of precipitation is 30%.
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Tuesday61°FSlight Chance Light Rain then Mostly Sunny18% chance of precipitation
A slight chance of rain before 7am. Mostly sunny, with a high near 61.
Issued by the National Weather Service (OKX office), updated .
Old Greenwich Hourly Forecast
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Old Greenwich Weather Radar
Open the full radar for Old GreenwichAbout Old Greenwich
- Population (2020 Census)
- 6,962
- Coordinates
- 41.019, -73.567
- NWS forecast office
- OKX
- Time zone
- America/New York
- Sunrise today
- 6:28 AM EST
- Sunset today
- 4:47 PM EST
- Daylight today
- 10 h 19 min
Old Greenwich Weather Questions
What is the weather forecast for Old Greenwich, Connecticut?
Overnight: Patchy fog. Mostly clear, with a low around 52. Southwest wind around 6 mph. Wednesday: Patchy fog before 8am. Sunny. High near 72, with temperatures falling to around 67 in the afternoon. Southwest wind 3 to 12 mph.
Will it rain or snow in Old Greenwich this week?
The best chance of precipitation is Friday at 85%. Periods with a 30% chance or more: Thursday (40%), Thursday Night (82%), Friday (85%), Friday Night (85%), Saturday (53%).
How warm and how cold will it get in Old Greenwich this week?
The warmest day is Wednesday, with a high near 72°F. The coldest night is Sunday Night, with a low near 43°F.
What time are sunrise and sunset in Old Greenwich today?
Sunrise is at 6:28 AM EST and sunset is at 4:47 PM EST, for 10 h 19 min of daylight.
Weather near Old Greenwich
- Riverside 1 mi
- Indian Field 2 mi
- Cos Cob 2 mi
- Greenwich 3 mi
- Stamford 4 mi
- Rock Ridge 4 mi
- Pemberwick 5 mi
- Byram 5 mi