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.

Mostly Cloudy

61°F

16°C

Humidity 77%
Wind Speed N 8 mph
Barometer 29.58 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 22 Mar 5:35 am CDT
Extended Forecast for

Romeoville IL

  • Today

    Today: A 20 percent chance of rain after 1pm. Mostly cloudy, with a temperature falling to around 40 by 5pm. Breezy, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 49 °F⇓

    Mostly Cloudy
    then Slight
    Chance Rain
    and Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 30. Blustery, with a north northeast wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 30 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 46. North northeast wind 5 to 10 mph.

    High: 46 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30. East northeast wind around 5 mph becoming south southeast after midnight. Winds could gust as high as 10 mph.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 57. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 57 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 60.

    High: 60 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers after 1pm. Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Today
A 20 percent chance of rain after 1pm. Mostly cloudy, with a temperature falling to around 40 by 5pm. Breezy, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy, with a low around 30. Blustery, with a north northeast wind 10 to 20 mph, with gusts as high as 30 mph.
Monday
Mostly sunny, with a high near 46. North northeast wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 30. East northeast wind around 5 mph becoming south southeast after midnight. Winds could gust as high as 10 mph.
Tuesday
Partly sunny, with a high near 57. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly cloudy, with a low around 42.
Wednesday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 60.
Wednesday Night
Mostly cloudy, with a low around 48.
Thursday
A chance of showers after 1pm. Partly sunny, with a high near 70.
Thursday Night
Mostly cloudy, with a low around 33.
Friday
Partly sunny, with a high near 44.
Friday Night
Mostly clear, with a low around 28.
Saturday
Sunny, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.66°N 88.1°W
Last Update:
4:11 am CDT Mar 22, 2026
Forecast Valid:
5am CDT Mar 22, 2026-6pm CDT Mar 28, 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