Darien

Western Connecticut Planning Region, Connecticut, United States

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Current Weather

20°

Clear

Feels Like: 11°

Min: 14°

Max: 24°

The next few hours will be clear, with tomorrow reaching 27°C and dropping to 9°C. The coming days will be mostly clear until afternoon, returning in the evening.

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Hourly Forecast

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12am
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9am
10am
11am
12pm
1pm
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Today
Tomorrow

Daylight Hours

06:41

Sunrise

18:54

Sunset

12 hours 12 minutes of sunlight today

Moon

Waxing Crescent

12:35

Moonrise

20:57

Moonset

Daily Forecast

Wednesday

14°
24°

Today

11°
27°

Friday

20°

Saturday

12°
23°

Sunday

14°
24°

Monday

14°
24°

Tuesday

14°
24°

Wednesday

12°
22°

Thursday

12°
20°

Friday

15°
19°

Air Quality Data Available

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UV Index

No protection needed
0 Low
Low Extreme

Humidity

92% Very Humid
Low High

Weather in Darien tomorrow, September 17, 2026

Expect a mostly clear day in Darien on September 17, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled. Cloud leads the morning, peaking close to 100% near 09:00. Sunshine has little room until later in the day.

Temperatures climb from an overnight low near 11°C toward a daytime high of about 27°C. Moisture in the air spans 46%-98%, with the highest values around 04:00. Winds stay light, near 2.8 km/h by 00:00, so the day feels still more than breezy.

Through the afternoon cloud remains the main feature, with cover near 100% around 13:00. Bright spells should stay limited even as the day wears on. Horizontal visibility sits around 14.7 km, briefly nearer 12.2 km. Sunrise is at 06:42 and sunset at 18:52, giving 12 hours 9 minutes of sunlight today.

Overall, Darien on September 17, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 27°C.

Frequently asked questions about weather in Darien

How warm does it get in Darien?

The warmest month in Darien is July, with average high temperatures of 29°C. The average temperature during this period is around 25°C.

How cold does it get in Darien?

The coldest month in Darien is January, with average low temperatures of -2°C. The average temperature during this period is around 1°C.

What is the wettest time of year in Darien?

The wettest month in Darien is July, with an average of 120mm of precipitation.

What is the driest time of year in Darien?

The driest month in Darien is June, with an average of 82mm of precipitation.

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