Weather forecast for 10 daysHarwinton, CT

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 57°F
  • 34°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 5mphNNE 26°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:08 am EDT
  • Sunset: 6:06 pm EDT
  • ▼
On Sunday, in Harwinton, the forecast calls for abundant sunshine.
Predicted temperatures will peak at a mild 57.2°F and dip to a minimum of a cold 33.8°F.
Tomorrow, the forecasted high will correspond with the regular October temperature of 59.4°F.
Sunrise will be at 7:08 am and sunset at 6:06 pm; tomorrow's daylight will last for 10h and 58min.

10-day overview

Daily temperatures

Warmest day: Monday 26.10. 66°C.
Coldest day: Saturday 24.10. 55°C.

Chance of precipitation

Highest chance: Monday 26.10. 18%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 30°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphNNW 342°
  • Humidity: 73%
  • UV index: 0
  • Sunrise: 7:07 am EDT
  • Sunset: 6:08 pm EDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 57°F
  • 34°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 5mphNNE 26°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:08 am EDT
  • Sunset: 6:06 pm EDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 61°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphNNE 31°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 7:09 am EDT
  • Sunset: 6:05 pm EDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 64°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 13mphNNE 22°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:10 am EDT
  • Sunset: 6:03 pm EDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 57°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 12mphNNE 32°
  • Humidity: 60%
  • UV index: 4
  • Sunrise: 7:11 am EDT
  • Sunset: 6:02 pm EDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 63°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 10mphN 1°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:12 am EDT
  • Sunset: 6:00 pm EDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 57°F
  • 32°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 10mphN 11°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:13 am EDT
  • Sunset: 5:59 pm EDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 55°F
  • 34°F
Sunny
Sunny
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 7mphNNE 25°
  • Humidity: 54%
  • UV index: 3
  • Sunrise: 7:15 am EDT
  • Sunset: 5:57 pm EDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 61°F
  • 39°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 7mphNNW 334°
  • Humidity: 53%
  • UV index: 3
  • Sunrise: 7:16 am EDT
  • Sunset: 5:56 pm EDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 66°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 9mphNNW 330°
  • Humidity: 53%
  • UV index: 3
  • Sunrise: 7:17 am EDT
  • Sunset: 5:54 pm EDT
  • ▼
Weather models show that a combination of sun-filled and cloudy weather is expected.
Rainfall is not forecasted in Harwinton in the upcoming period.
In the coming days, the maximum temperature will range between 55.4°F and 66.2°F, while the variation in nighttime lows will be notably wide, as nighttime lows are forecast to fall between 30.2°F and 44.6°F.
Next Monday will be the warmest day, with a maximum temperature of 66.2°F; with the highest temperature of 55.4°F, next Saturday will be the coldest day.
Updated: Oct 18, 2026 @ 03:30:52 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Harwinton, expect sunny weather with a crisp, clear sky.

Tomorrow, the highest temperature will be 57.2°F, while the lowest temperature will be 33.8°F.
Tomorrow, the highest temperature will be in line with the average maximum temperature in October. The lowest temperature tomorrow will be notably lower than the average low of 44.6°F.

On Sunday, in Harwinton, sunrise will be at 7:08 am and sunset at 6:06 pm (EDT).

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