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

37°F

3°C

Humidity 45%
Wind Speed NE 14 mph
Barometer 30.15 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 28 Feb 12:45 pm CST
Extended Forecast for

Romeoville IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a temperature falling to around 34 by 5pm. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 38 °F⇓

    Mostly Cloudy

  • Tonight

    Tonight: Scattered 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

    Scattered
    Flurries

  • Sunday

    Sunday: Scattered flurries before noon. Mostly sunny, with a high near 34. Northeast wind around 10 mph, with gusts as high as 15 mph.

    High: 34 °F

    Scattered
    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. 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 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 54.

    High: 54 °F

    Chance Rain

Detailed Forecast

This Afternoon
Mostly cloudy, with a temperature falling to around 34 by 5pm. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Scattered 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
Scattered flurries before noon. Mostly 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. Chance of precipitation is 70%.
Tuesday
Rain. High near 45. Chance of precipitation is 90%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 36.
Wednesday
A chance of rain. Mostly cloudy, with a high near 54.
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. Cloudy, with a low around 47.
Friday
Rain likely. Cloudy, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.63°N 88.1°W
Last Update:
12:31 pm CST Feb 28, 2026
Forecast Valid:
12pm CST Feb 28, 2026-6pm CST Mar 6, 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