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.

Fair

45°F

7°C

Humidity 93%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 43°F (6°C)
Visibility 9.00 mi
Last update 10 Nov 11:35 pm CST
Extended Forecast for

Romeoville IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: Scattered showers, mainly between 9am and 5pm. Mostly cloudy, with a high near 55. Light and variable wind becoming northeast 5 to 10 mph in the morning. Winds could gust as high as 15 mph. Chance of precipitation is 40%.

    High: 55 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36. North wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 36 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers before noon. Partly sunny, with a high near 46. North wind around 15 mph, with gusts as high as 25 mph.

    High: 46 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 30. North northwest wind 10 to 15 mph.

    Low: 30 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 42. Calm wind.
Veterans Day
Scattered showers, mainly between 9am and 5pm. Mostly cloudy, with a high near 55. Light and variable wind becoming northeast 5 to 10 mph in the morning. Winds could gust as high as 15 mph. Chance of precipitation is 40%.
Wednesday Night
Partly cloudy, with a low around 36. North wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
A 20 percent chance of showers before noon. Partly sunny, with a high near 46. North wind around 15 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 30. North northwest wind 10 to 15 mph.
Friday
Mostly sunny, with a high near 43.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 45.
Saturday Night
Mostly clear, with a low around 28.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
Mostly sunny, with a high near 53.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.63°N 88.1°W
Last Update:
8:41 pm CST Nov 10, 2026
Forecast Valid:
11pm CST Nov 10, 2026-6pm CST Nov 17, 2026
 
Forecast Discussion
 
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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