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 63%
Wind Speed NW 5 mph
Barometer 30.05 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 3 Jan 5:45 am CST
Extended Forecast for

Romeoville IL

  • Today

    Today: Mostly cloudy, with a high near 28. North wind around 5 mph becoming west in the afternoon.

    High: 28 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 16. Northwest wind around 5 mph becoming calm after midnight.

    Low: 16 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Increasing clouds, with a high near 30. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 30 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Cloudy during the early evening, then gradual clearing, with a low around 27. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 27 °F

    Gradual
    Clearing

  • Monday

    Monday: Partly sunny, with a high near 42. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 42 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 28. North wind around 5 mph becoming west in the afternoon.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 16. Northwest wind around 5 mph becoming calm after midnight.
Sunday
Increasing clouds, with a high near 30. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Sunday Night
Cloudy during the early evening, then gradual clearing, with a low around 27. South wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 42. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Mostly cloudy, with a low around 34.
Tuesday
Partly sunny, with a high near 47.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Partly sunny, with a high near 47.
Wednesday Night
Mostly cloudy, with a low around 37.
Thursday
A chance of rain. Mostly cloudy, with a high near 52.
Thursday Night
Rain likely. Mostly cloudy, with a low around 41.
Friday
A chance of rain. Partly sunny, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.66°N 88.1°W
Last Update:
3:36 am CST Jan 3, 2026
Forecast Valid:
6am CST Jan 3, 2026-6pm CST Jan 9, 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