National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Overcast

27°F

-3°C

Humidity 74%
Wind Speed NW 7 G 17 mph
Barometer 30.17 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 21 Feb 5:50 pm CST
Extended Forecast for

Romeoville IL

  • Tonight

    Tonight: A 40 percent chance of snow, mainly after 9pm. Cloudy, with a low around 22. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 22 °F

    Chance Snow

  • Sunday

    Sunday: A slight chance of snow before 9am, then a chance of flurries after 9am. Mostly cloudy, with a high near 29. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 29 °F

    Blustery.
    Slight Chance
    Snow then
    Chance
    Flurries

  • Sunday Night

    Sunday Night: Cloudy, then gradually becoming partly cloudy, with a low around 17. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 17 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Monday

    Monday: Sunny, with a high near 29. North northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 29 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 18. Calm wind becoming south around 5 mph after midnight. Winds could gust as high as 10 mph.

    Low: 18 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of snow after noon. Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain before midnight, then a chance of snow. Mostly cloudy, with a low around 24.

    Low: 24 °F

    Chance Rain
    then Chance
    Snow

Detailed Forecast

Tonight
A 40 percent chance of snow, mainly after 9pm. Cloudy, with a low around 22. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
A slight chance of snow before 9am, then a chance of flurries after 9am. Mostly cloudy, with a high near 29. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Sunday Night
Cloudy, then gradually becoming partly cloudy, with a low around 17. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 29. North northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 18. Calm wind becoming south around 5 mph after midnight. Winds could gust as high as 10 mph.
Tuesday
A 20 percent chance of snow after noon. Partly sunny, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
Partly sunny, with a high near 43.
Wednesday Night
A chance of rain before midnight, then a chance of snow. Mostly cloudy, with a low around 24.
Thursday
A chance of snow. Mostly sunny, with a high near 39.
Thursday Night
Mostly clear, with a low around 25.
Friday
Sunny, with a high near 52.
Friday Night
Partly cloudy, with a low around 32.
Saturday
Partly sunny, with a high near 49.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.66°N 88.1°W
Last Update:
5:36 pm CST Feb 21, 2026
Forecast Valid:
6pm CST Feb 21, 2026-6pm CST Feb 28, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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