Weather forecast for 10 daysOld Greenwich, CT
Weather forecast for the weekend
Sunday Oct 18, 2026
- 57°F
- 41°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphNE 34°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:09 am EDT
- Sunset: 6:09 pm EDT
- details ▼
Today, in Old Greenwich, sunshine will likely continue with scattered clouds at most.
The maximum temperature will be a moderate 57.2°F, while the minimum temperature will be a cold 41°F.
Today's high temperature is expected to be relatively lower than the typical October peak of 62.4°F.
Sunrise will be at 7:09 am and sunset at 6:09 pm; the daylight will last for 11h and 0min.
The maximum temperature will be a moderate 57.2°F, while the minimum temperature will be a cold 41°F.
Today's high temperature is expected to be relatively lower than the typical October peak of 62.4°F.
Sunrise will be at 7:09 am and sunset at 6:09 pm; the daylight will last for 11h and 0min.
10-day overview
Daily temperatures
Maximum temperature: 68°C.
Coldest day: today 57°C.
Coldest day: today 57°C.
Chance of precipitation
Highest chance: Thursday 17%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 57°F
- 41°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphNE 34°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:09 am EDT
- Sunset: 6:09 pm EDT
- details ▼
- Monday
- Oct 19, 2026
- 64°F
- 48°F
Mostly Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 14mphNNE 33°
- Humidity: 56%
- UV index: 4
- Sunrise: 7:10 am EDT
- Sunset: 6:07 pm EDT
- details ▼
- Tuesday
- Oct 20, 2026
- 68°F
- 46°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 14mphNNE 17°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:11 am EDT
- Sunset: 6:06 pm EDT
- details ▼
- Wednesday
- Oct 21, 2026
- 63°F
- 46°F
Mostly Sunny
- Precip. probability: 9%
- Precipitation: 0"
- Wind: 14mphNNE 27°
- Humidity: 58%
- UV index: 4
- Sunrise: 7:12 am EDT
- Sunset: 6:05 pm EDT
- details ▼
- Thursday
- Oct 22, 2026
- 64°F
- 46°F
Partly Cloudy
- Precip. probability: 17%
- Precipitation: 0"
- Wind: 12mphN 359°
- Humidity: 55%
- UV index: 4
- Sunrise: 7:13 am EDT
- Sunset: 6:03 pm EDT
- details ▼
- Friday
- Oct 23, 2026
- 59°F
- 39°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 12mphN 11°
- Humidity: 50%
- UV index: 4
- Sunrise: 7:14 am EDT
- Sunset: 6:02 pm EDT
- details ▼
- Saturday
- Oct 24, 2026
- 59°F
- 39°F
Sunny
- Precip. probability: 12%
- Precipitation: 0"
- Wind: 10mphNE 37°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:16 am EDT
- Sunset: 6:00 pm EDT
- details ▼
- Sunday
- Oct 25, 2026
- 63°F
- 41°F
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 8mphNNW 328°
- Humidity: 57%
- UV index: 4
- Sunrise: 7:17 am EDT
- Sunset: 5:59 pm EDT
- details ▼
- Monday
- Oct 26, 2026
- 68°F
- 48°F
Partly Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 9mphNNW 329°
- Humidity: 55%
- UV index: 3
- Sunrise: 7:18 am EDT
- Sunset: 5:58 pm EDT
- details ▼
- Tuesday
- Oct 27, 2026
- 64°F
- 45°F
Partly Cloudy
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 10mphN 353°
- Humidity: 61%
- UV index: 3
- Sunrise: 7:19 am EDT
- Sunset: 5:56 pm EDT
- details ▼
Across the following ten days, a combination of bright and cloud-filled weather is anticipated.
Rainfall is not expected in Old Greenwich in the upcoming days.
In the upcoming days, the highest temperature will vary between 57.2°F and 68°F, while the forecast minimum temperature falls between 39.2°F and 48.2°F.
With a maximum temperature of 68°F, Tuesday and next Monday will be the warmest days; today is the coldest day, with a maximum temperature of 57.2°F.
Rainfall is not expected in Old Greenwich in the upcoming days.
In the upcoming days, the highest temperature will vary between 57.2°F and 68°F, while the forecast minimum temperature falls between 39.2°F and 48.2°F.
With a maximum temperature of 68°F, Tuesday and next Monday will be the warmest days; today is the coldest day, with a maximum temperature of 57.2°F.
Updated: Oct 18, 2026 @ 08:15:28 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Today, expect sunny weather with a crisp, clear sky.
Today, the maximum temperature will be 57.2°F, while the minimum temperature will be 41°F.
The highest temperature today will be moderately lower than the average maximum temperature in October. The lowest temperature today will be notably lower than the average low of 52°F.
The highest temperature today will be moderately lower than the average maximum temperature in October. The lowest temperature today will be notably lower than the average low of 52°F.
On Sunday, in Old Greenwich, sunrise will be at 7:09 am and sunset at 6:09 pm (EDT).
In Old Greenwich, Connecticut, the length of the day today will be 11h and 0min.
