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.

Mostly Cloudy with Haze

27°F

-3°C

Humidity 86%
Wind Speed SE 6 mph
Barometer 30.24 in
Dewpoint 23°F (-5°C)
Visibility 3.00 mi
Wind Chill20°F (-7°C)
Last update 1 Dec 1:55 pm CST
Extended Forecast for

Romeoville IL

Winter Weather Advisory until December 2, 12:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until December 2, 12:00am

    NOW until 12:00am Tue

    Winter Weather Advisory

  • This Afternoon

    High: 27 °F

    Snow

  • Tonight

    Tonight: Snow before midnight, then a chance of snow with intermittent flurries between midnight and 2am. Low around 16. Southeast wind around 5 mph becoming west northwest after midnight. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    Low: 16 °F

    Snow then
    Chance Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 21. Northwest wind 5 to 10 mph becoming southwest in the afternoon.

    High: 21 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Cloudy, with a low around 17. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 17 °F

    Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of snow showers, mainly after noon. Cloudy, with a high near 33. South southwest wind 10 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 33 °F

    Slight Chance
    Snow Showers
    then Chance
    Snow Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 1.

    Low: 1 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 11.

    High: 11 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -6.

    Low: -6 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Snow. High near 27. South southeast wind around 5 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow before midnight, then a chance of snow with intermittent flurries between midnight and 2am. Low around 16. Southeast wind around 5 mph becoming west northwest after midnight. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Tuesday
Mostly cloudy, with a high near 21. Northwest wind 5 to 10 mph becoming southwest in the afternoon.
Tuesday Night
Cloudy, with a low around 17. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
A 50 percent chance of snow showers, mainly after noon. Cloudy, with a high near 33. South southwest wind 10 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 1.
Thursday
Sunny, with a high near 11.
Thursday Night
Partly cloudy, with a low around -6.
Friday
Mostly sunny, with a high near 23.
Friday Night
Mostly cloudy, with a low around 16.
Saturday
Mostly cloudy, with a high near 28.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 16.
Sunday
Mostly cloudy, with a high near 26.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.66°N 88.1°W
Last Update:
1:34 pm CST Dec 1, 2025
Forecast Valid:
2pm CST Dec 1, 2025-6pm CST Dec 7, 2025
 
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