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

46°F

8°C

Humidity 71%
Wind Speed NE 18 G 32 mph
Barometer 29.71 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 22 Mar 8:45 am CDT
Extended Forecast for

Romeoville IL

  • Today

    Today: A 30 percent chance of showers, mainly after 4pm. Mostly cloudy, with a temperature falling to around 40 by 5pm. Breezy, with a north northeast wind around 20 mph, with gusts as high as 30 mph.

    High: 50 °F⇓

    Breezy.
    Mostly Cloudy
    then Chance
    Showers

  • Tonight

    Tonight: A 10 percent chance of showers before 7pm. Mostly cloudy, with a low around 28. Blustery, with a north wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 28 °F

    Slight Chance
    Showers 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 30 percent chance of showers, mainly after 4pm. Mostly cloudy, with a temperature falling to around 40 by 5pm. Breezy, with a north northeast wind around 20 mph, with gusts as high as 30 mph.
Tonight
A 10 percent chance of showers before 7pm. Mostly cloudy, with a low around 28. Blustery, with a north 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
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ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.63°N 88.07°W
Last Update:
8:51 am CDT Mar 22, 2026
Forecast Valid:
9am CDT Mar 22, 2026-6pm CDT Mar 28, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation