National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Fair

18°F

-8°C

Humidity 38%
Wind Speed Calm
Barometer 30.37 in
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Last update 4 Dec 12:45 pm CST
Extended Forecast for

Darien IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 20. Calm wind becoming west southwest around 5 mph.

    High: 20 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 3. Wind chill values as low as -9. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 3 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 27. Wind chill values as low as -4. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 27 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 22. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 22 °F

    Chance Snow
    then Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 29. West northwest wind 5 to 10 mph.

    High: 29 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 40 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 16.

    Low: 16 °F

    Chance Snow

  • Sunday

    Sunday: A 30 percent chance of snow before noon. Partly sunny, with a high near 26.

    High: 26 °F

    Chance Snow
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 10.

    Low: 10 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 22.

    High: 22 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 20. Calm wind becoming west southwest around 5 mph.
Tonight
Increasing clouds, with a low around 3. Wind chill values as low as -9. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Partly sunny, with a high near 27. Wind chill values as low as -4. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 22. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
Mostly cloudy, with a high near 29. West northwest wind 5 to 10 mph.
Saturday Night
A 40 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 16.
Sunday
A 30 percent chance of snow before noon. Partly sunny, with a high near 26.
Sunday Night
Mostly cloudy, with a low around 10.
Monday
Partly sunny, with a high near 22.
Monday Night
A chance of snow. Mostly cloudy, with a low around 15.
Tuesday
Mostly cloudy, with a high near 32.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 23.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 34.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Darien IL
 41.74°N 87.98°W
Last Update:
12:05 pm CST Dec 4, 2025
Forecast Valid:
1pm CST Dec 4, 2025-6pm CST Dec 10, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation