Weather forecast for 10 daysDeep River, CT

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 57°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphNNE 29°
  • Humidity: 47%
  • UV index: 4
  • Sunrise: 7:05 am EDT
  • Sunset: 6:04 pm EDT
  • ▼
Tomorrow, on Sunday, October 18, sunshine and minimal clouds are also in the outlook.
The maximum forecasted temperature is a mild 57.2°F, while the minimum temperature will be an icy 37.4°F.
Tomorrow's high temperature is expected to be a couple of degrees lower than the typical October peak of 61.9°F.
Sunrise will be at 7:05 am and sunset at 6:04 pm; tomorrow's daylight will last for 10h and 59min.

10-day overview

Daily temperatures

Maximum temperature: 66°C.
Coldest day: tomorrow 57°C.

Chance of precipitation

Highest chance: 24%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 34°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 9mphNNW 347°
  • Humidity: 62%
  • UV index: 0
  • Sunrise: 7:04 am EDT
  • Sunset: 6:06 pm EDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 57°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphNNE 29°
  • Humidity: 47%
  • UV index: 4
  • Sunrise: 7:05 am EDT
  • Sunset: 6:04 pm EDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 63°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 7mphNNE 33°
  • Humidity: 59%
  • UV index: 4
  • Sunrise: 7:06 am EDT
  • Sunset: 6:03 pm EDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 66°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 14mphNNE 22°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:07 am EDT
  • Sunset: 6:01 pm EDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 61°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 14%
  • Precipitation: 0.08"
  • Wind: 14mphNNE 33°
  • Humidity: 62%
  • UV index: 4
  • Sunrise: 7:08 am EDT
  • Sunset: 6:00 pm EDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 61°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 11mphN 9°
  • Humidity: 62%
  • UV index: 4
  • Sunrise: 7:09 am EDT
  • Sunset: 5:58 pm EDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 61°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 11mphNNE 20°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:11 am EDT
  • Sunset: 5:57 pm EDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 59°F
  • 39°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 9mphNNE 33°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 7:12 am EDT
  • Sunset: 5:55 pm EDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 61°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 24%
  • Precipitation: 0.04"
  • Wind: 9mphNNE 23°
  • Humidity: 68%
  • UV index: 3
  • Sunrise: 7:13 am EDT
  • Sunset: 5:54 pm EDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 66°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 9mphN 352°
  • Humidity: 70%
  • UV index: 3
  • Sunrise: 7:14 am EDT
  • Sunset: 5:53 pm EDT
  • ▼
It is expected that a combination of dull and bright weather is anticipated.
Rainfall is forecasted for Wednesday and next Sunday.
In the upcoming days, the highest temperature will vary between 57.2°F and 66.2°F, while the difference in minimum temperatures will be substantial, as nighttime lows are forecast to fall between 33.8°F and 46.4°F.
With a maximum temperature of 66.2°F, Tuesday and next Monday will be the warmest days; with the highest temperature of 57.2°F, Sunday will be the coldest day.
Updated: Oct 17, 2026 @ 20:52:39 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, expect sunny weather with a crisp, clear sky.

Tomorrow, the highest temperature will be 57.2°F, while the lowest temperature will be 37.4°F.
The maximum temperature will be a few degrees lower than the average highest temperature of 61.9°F in October. The lowest temperature tomorrow will be noticeably lower than the average low of 50.5°F.

On Sunday, in Deep River, sunrise will be at 7:05 am and sunset at 6:04 pm (EDT).

In Deep River, Connecticut, tomorrow, there will be 10h and 59min of daylight.