Live Weather & Forecast
Weather in Darien
Illinois, United States · Real-time conditions & 3-day outlook
7°C
Feels like 5°C
44°F / Feels 41°F
Sunny
Darien, Illinois
🌞 Daytime
Updated: 2026-04-12 08:30
Humidity
51%
Wind
7.9 km/h NNE
Wind Gust
10.1 km/h
Pressure
1034 mb
Visibility
16 km
UV Index
0.6
(Low)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
-3.5°C
Wind Degree
20°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
183.9 μg/m³
NO₂
8.8 μg/m³
O₃
94 μg/m³
SO₂
3.9 μg/m³
PM 2.5
7.5 μg/m³
PM 10
8.8 μg/m³
Weather Alerts 1
Met
· Minor · Expected
Frost Advisory issued April 11 at 1:23PM EDT until April 12 at 9:00AM EDT by NWS Upton NY
* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...In Connecticut, Southern Middlesex and Southern New London Counties. In New Jersey, Western Bergen and Western Passaic Counties. In New York, Northeast Suffolk, Northern Westchester, Rockland, and Southeast Suffolk Counties. * WHEN...From midnight tonight to 9 AM EDT Sunday. * IMPACTS...Frost could harm sensitive outdo...
Take steps now to protect tender plants from the cold.
Today's Hourly Forecast
24-hour breakdown for Darien, Illinois
12 AM
8°
Clear
1 AM
7°
Clear
2 AM
6°
Clear
3 AM
6°
Clear
4 AM
5°
Clear
5 AM
4°
Clear
6 AM
4°
Clear
7 AM
5°
Sunny
8 AM
7°
Sunny
9 AM
8°
Sunny
10 AM
9°
Sunny
11 AM
11°
Sunny
12 PM
12°
Sunny
1 PM
12°
Sunny
2 PM
14°
Sunny
3 PM
14°
Sunny
4 PM
15°
Sunny
5 PM
13°
Sunny
6 PM
11°
Cloudy
7 PM
10°
Partly Cloudy
8 PM
9°
Cloudy
9 PM
9°
Cloudy
10 PM
8°
Overcast
11 PM
8°
Partly Cloudy
3-Day Forecast
Daily overview for Darien, Illinois
Today
Sunny
15°
/
3°
🌧️ 0% chance of rain
💧 Avg. humidity: 51%
💨 Max wind: 18.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.6
🌅 Sunrise: 06:19 AM
🌇 Sunset: 07:31 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Overcast
17°
/
6°
🌧️ 0% chance of rain
💧 Avg. humidity: 86%
💨 Max wind: 28.8 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.1
🌅 Sunrise: 06:18 AM
🌇 Sunset: 07:32 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Partly Cloudy
23°
/
15°
🌧️ 0% chance of rain
💧 Avg. humidity: 76%
💨 Max wind: 19.8 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.8
🌅 Sunrise: 06:16 AM
🌇 Sunset: 07:33 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit Darien
Plan your trip to Darien, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Darien?
Current conditions in Darien: Sunny, temperature 7°C, humidity 51%.
What is the best time to visit Darien?
The best time to visit Darien is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Darien?
Darien is located at approximately 41.1° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Darien?
The wettest period in Darien is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Darien?
For visits to Darien during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Darien in?
Darien is located in United States, in the state of Illinois.
What are the public holidays in Darien in 2026?
View the 2026 public holidays for Darien on our Holidays page.
What are the GPS coordinates used for the weather forecast in Darien?
The weather forecast for Darien uses coordinates 41.0787, -73.4693.