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

28°F

-2°C

Humidity 80%
Wind Speed N 17 mph
Barometer 30.30 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 28 Feb 11:15 pm CST
Extended Forecast for

Romeoville IL

  • Tonight

    Tonight: A chance of flurries after 3am. Mostly cloudy, with a low around 25. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 25 °F

    Chance
    Flurries

  • Sunday

    Sunday: A chance of flurries before noon. Partly sunny, with a high near 34. Northeast wind around 10 mph, with gusts as high as 15 mph.

    High: 34 °F

    Chance
    Flurries

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 22. East northeast wind 5 to 10 mph.

    Low: 22 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 44. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 44 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of rain and snow before midnight, then rain likely. Cloudy, with a low around 34. Southeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.

    Low: 34 °F

    Slight Chance
    Rain/Snow
    then Rain
    Likely

  • Tuesday

    Tuesday: Rain. High near 45. Chance of precipitation is 90%.

    High: 45 °F

    Rain

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain

  • Wednesday

    Wednesday: A chance of rain. Mostly cloudy, with a high near 53.

    High: 53 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before midnight. Cloudy, with a low around 42.

    Low: 42 °F

    Rain Likely

Detailed Forecast

Tonight
A chance of flurries after 3am. Mostly cloudy, with a low around 25. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
A chance of flurries before noon. Partly sunny, with a high near 34. Northeast wind around 10 mph, with gusts as high as 15 mph.
Sunday Night
Mostly cloudy, with a low around 22. East northeast wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 44. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
A slight chance of rain and snow before midnight, then rain likely. Cloudy, with a low around 34. Southeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.
Tuesday
Rain. High near 45. Chance of precipitation is 90%.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 36.
Wednesday
A chance of rain. Mostly cloudy, with a high near 53.
Wednesday Night
Rain likely, mainly before midnight. Cloudy, with a low around 42.
Thursday
A chance of rain. Mostly cloudy, with a high near 59.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 47.
Friday
Rain likely. Cloudy, with a high near 64.
Friday Night
Rain likely. Mostly cloudy, with a low around 46.
Saturday
Rain likely. Mostly cloudy, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.66°N 88.1°W
Last Update:
8:36 pm CST Feb 28, 2026
Forecast Valid:
11pm CST Feb 28, 2026-6pm CST Mar 7, 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