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

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Overcast

21°F

-6°C

Humidity 93%
Wind Speed S 15 mph
Barometer 30.04 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill7°F (-14°C)
Last update 2 Dec 9:15 pm CST
Extended Forecast for

Romeoville IL

  • Tonight

    Tonight: Cloudy, with a low around 19. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 19 °F

    Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of snow showers, mainly before 4pm. Cloudy, with a high near 32. South southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 32 °F

    Chance Snow
    Showers

  • Wednesday Night

    Wednesday Night: Cloudy, then gradually becoming partly cloudy, with a low around 2. Wind chill values as low as -11. North northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 2 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 14. Wind chill values as low as -11. Northwest wind 5 to 10 mph becoming southwest in the afternoon.

    High: 14 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -3. South southwest wind 5 to 10 mph.

    Low: -3 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 23.

    High: 23 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 15.

    Low: 15 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 27.

    High: 27 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of snow. Mostly cloudy, with a low around 15.

    Low: 15 °F

    Chance Snow

Detailed Forecast

Tonight
Cloudy, with a low around 19. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
A 40 percent chance of snow showers, mainly before 4pm. Cloudy, with a high near 32. South southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
Cloudy, then gradually becoming partly cloudy, with a low around 2. Wind chill values as low as -11. North northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 14. Wind chill values as low as -11. Northwest wind 5 to 10 mph becoming southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around -3. South southwest wind 5 to 10 mph.
Friday
Partly sunny, with a high near 23.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 15.
Saturday
Mostly cloudy, with a high near 27.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 15.
Sunday
A chance of snow. Mostly cloudy, with a high near 26.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 12.
Monday
Mostly cloudy, with a high near 25.
Monday Night
A chance of snow. Mostly cloudy, with a low around 17.
Tuesday
Mostly cloudy, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.63°N 88.1°W
Last Update:
4:36 pm CST Dec 2, 2025
Forecast Valid:
9pm CST Dec 2, 2025-6pm CST Dec 9, 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