Weather forecast for 10 daysCornwall, CT

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 46°F
  • 30°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphNNW 337°
  • Humidity: 46%
  • UV index: 4
  • Sunrise: 7:08 am EDT
  • Sunset: 6:09 pm EDT
  • ▼
Today, in Cornwall, scattered clouds may briefly filter the sunlight, but it will remain bright overall.
A temperature range of a frosty 46.4°F to a subzero 30.2°F is anticipated.
Today, a maximum of 46.4°F is expected - more characteristic of November than of October.
Sunrise was at 7:08 am and sunset will be at 6:09 pm; the daylight will last for 11h and 1min.

Sunday Oct 18, 2026

  • 57°F
  • 34°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphNNW 338°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:09 am EDT
  • Sunset: 6:07 pm EDT
  • ▼
On Sunday, in Cornwall, expect sunny weather with a crisp, clear sky.
Temperature span will be from a high of a moderate 57.2°F to a low of a wintry 33.8°F.
The expected daily high is projected to match October's typical maximum of 59°F.
Sunrise will be at 7:09 am and sunset at 6:07 pm; tomorrow's daylight will last for 10h and 58min.

10-day overview

Daily temperatures

Warmest day: Tuesday 66°C.
Coldest day: today 46°C.

Chance of precipitation

Highest chance: Monday 26.10. 19%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 46°F
  • 30°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphNNW 337°
  • Humidity: 46%
  • UV index: 4
  • Sunrise: 7:08 am EDT
  • Sunset: 6:09 pm EDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 57°F
  • 34°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphNNW 338°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:09 am EDT
  • Sunset: 6:07 pm EDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 64°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 6mphNNE 26°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:10 am EDT
  • Sunset: 6:06 pm EDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 66°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 10mphNNE 18°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:11 am EDT
  • Sunset: 6:04 pm EDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 59°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 11mphNE 38°
  • Humidity: 59%
  • UV index: 4
  • Sunrise: 7:12 am EDT
  • Sunset: 6:03 pm EDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 63°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 9mphN 7°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:13 am EDT
  • Sunset: 6:01 pm EDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 59°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 9mphN 10°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:15 am EDT
  • Sunset: 6:00 pm EDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 59°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 9mphNNE 24°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:16 am EDT
  • Sunset: 5:58 pm EDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 61°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 7mphNNE 21°
  • Humidity: 60%
  • UV index: 3
  • Sunrise: 7:17 am EDT
  • Sunset: 5:57 pm EDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 64°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 7mphN 354°
  • Humidity: 60%
  • UV index: 3
  • Sunrise: 7:18 am EDT
  • Sunset: 5:55 pm EDT
  • ▼
Over the next ten days, conditions will reflect that a combination of dull and mostly clear weather is predicted.
Rainfall is not forecasted in Cornwall in the upcoming days.
Noticeable swings in temperature are expected in the next ten days. Highs will range from 46.4°F to 66.2°F, while the difference in minimum temperatures will be also substantial, as the overnight lows will vary from 30.2°F to 42.8°F.
The warmest day will be Tuesday, with a maximum of 66.2°F; today is the coldest day, with a maximum temperature of 46.4°F.
Updated: Oct 17, 2026 @ 17:10:43 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, moments of sunshine will break through the patchy clouds.

Today, the maximum temperature in Cornwall will be 46.4°F, while the minimum temperature will be 30.2°F.
Today, the maximum temperature will be notably lower than the average highest temperature of 59°F in October. The lowest temperature today will be also noticeably lower than the average low of 44.1°F.

On Saturday, in Cornwall, sunrise was at 7:08 am and sunset will be at 6:09 pm (EDT).

Today in Cornwall, the daylight will last for 11h and 1min.

On Sunday, uninterrupted sunshine is anticipated.

Tomorrow, the maximum temperature in Cornwall will be 57.2°F, while the minimum temperature will be 33.8°F.
The maximum temperature tomorrow will be in line with the average highest temperature in October. The lowest temperature tomorrow will be uncommonly lower than the average low of 44.1°F.

On Sunday, in Cornwall, sunrise will be at 7:09 am and sunset at 6:07 pm (EDT).

Tomorrow, the daylight will last for 10h and 58min.