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.

A Few Clouds

34°F

1°C

Humidity 87%
Wind Speed S 8 mph
Barometer 29.90 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 26 Feb 8:35 pm CST
Extended Forecast for

Romeoville IL

  • Tonight

    Tonight: Mostly clear, with a low around 27. Southwest wind around 5 mph, with gusts as high as 15 mph.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 62. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 62 °F

    Sunny then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30. West southwest wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 20 mph.

    Low: 30 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 37. North northeast wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 37 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 20. North wind around 10 mph, with gusts as high as 20 mph.

    Low: 20 °F

    Chance Snow
    then Mostly
    Cloudy

  • Sunday

    Sunday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 32.

    High: 32 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 21.

    Low: 21 °F

    Chance Snow

  • Monday

    Monday: Sunny, with a high near 37.

    High: 37 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 27. Southwest wind around 5 mph, with gusts as high as 15 mph.
Friday
Sunny, with a high near 62. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.
Friday Night
Partly cloudy, with a low around 30. West southwest wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 20 mph.
Saturday
A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 37. North northeast wind 5 to 10 mph, with gusts as high as 25 mph.
Saturday Night
A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 20. North wind around 10 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 32.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 21.
Monday
Sunny, with a high near 37.
Monday Night
Mostly cloudy, with a low around 24.
Tuesday
A chance of rain and snow before noon, then a chance of rain. Mostly cloudy, with a high near 41.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 28.
Wednesday
A chance of rain. Mostly cloudy, with a high near 49.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 39.
Thursday
Rain likely. Mostly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.66°N 88.1°W
Last Update:
4:36 pm CST Feb 26, 2026
Forecast Valid:
8pm CST Feb 26, 2026-6pm CST Mar 5, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation