Old Greenwich, CT Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Old Greenwich, CT in one place.
Mostly sunny, with a high near 72.
Local Weather Overview
This forecast page for Old Greenwich, CT is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: May 27, 2026 9:41 PM EDT.
The active forecast window currently covers May 30 to Jun 3, 2026 for Old Greenwich, CT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 3, 2026
- Latest sync
- May 27, 2026 9:41 PM EDT
- Forecast office
- OKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Old Greenwich
Wednesday looks like the warmest upcoming period in Old Greenwich at 73 degrees F.
Saturday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Saturday at about 17 mph NW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- May 27, 2026 9:41 PM EDT
- Coverage
- 5 days
- Time zone
- America/New_York
- Forecast office
- OKX
- Radar station
- KOKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 52.
Sunny, with a high near 72.
Partly cloudy, with a low around 57.
A chance of rain showers after 8am. Partly sunny, with a high near 72. Chance of precipitation is 40%.
A chance of rain showers. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
A chance of rain showers. Mostly sunny, with a high near 71. Chance of precipitation is 30%.
A chance of rain showers. Partly cloudy, with a low around 56. Chance of precipitation is 30%.
A slight chance of rain showers. Mostly sunny, with a high near 73.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Mostly Sunny
|
72°F |
17 mph
NW
|
|
Saturday Night
May 30
|
Partly Cloudy
|
52°F |
8 to 17 mph
N
|
|
Sunday
May 31
|
Sunny
|
72°F |
8 to 13 mph
NW
|
|
Sunday Night
May 31
|
Partly Cloudy
|
57°F |
7 to 12 mph
SW
|
|
Monday
Jun 1
|
Chance Rain Showers
|
72°F |
6 to 9 mph
SE
|
|
Monday Night
Jun 1
|
Chance Rain Showers
|
55°F |
5 to 9 mph
E
|
|
Tuesday
Jun 2
|
Chance Rain Showers
|
71°F |
6 to 9 mph
NE
|
|
Tuesday Night
Jun 2
|
Chance Rain Showers
|
56°F |
6 to 9 mph
NE
|
|
Wednesday
Jun 3
|
Slight Chance Rain Showers
|
73°F |
6 to 9 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Old Greenwich.
