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

43°F

6°C

Humidity 93%
Wind Speed SE 15 mph
Barometer 29.91 in
Dewpoint 41°F (5°C)
Visibility 8.00 mi
Wind Chill36°F (2°C)
Last update 27 Dec 3:55 pm CST
Extended Forecast for

Romeoville IL

Wind Advisory December 28, 06:00pm until December 29, 06:00pm
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: Rain likely, mainly after 3am. Patchy fog after midnight. Otherwise, cloudy, with a temperature rising to around 51 by 4am. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F⇑

    Slight Chance
    Rain then
    Rain Likely
    and Patchy
    Fog

  • Sunday

    Sunday: Rain, with thunderstorms also possible after 9am. Patchy fog before noon. High near 57. South wind 5 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 57 °F

    Rain and
    Patchy Fog

  • Sunday Night

    Sunday Night: Rain likely before 8pm, then rain and snow likely between 8pm and 9pm, then snow likely after 9pm. Some thunder is also possible. Cloudy, with a low around 16. Wind chill values as low as -3. Windy, with a west wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 16 °F

    Windy.
    Rain/Snow
    Likely then
    Snow Likely

  • Monday

    Monday: A 40 percent chance of snow before noon. Mostly cloudy, with a high near 24. Wind chill values as low as -3. Windy, with a west northwest wind 20 to 30 mph, with gusts as high as 45 mph.

    High: 24 °F

    Chance Snow
    and Windy
    then Mostly
    Cloudy and
    Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around 12. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 12 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 27.

    High: 27 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 32.

    High: 32 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of snow before midnight. Mostly cloudy, with a low around 15.

    Low: 15 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Rain likely, mainly after 3am. Patchy fog after midnight. Otherwise, cloudy, with a temperature rising to around 51 by 4am. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain, with thunderstorms also possible after 9am. Patchy fog before noon. High near 57. South wind 5 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Sunday Night
Rain likely before 8pm, then rain and snow likely between 8pm and 9pm, then snow likely after 9pm. Some thunder is also possible. Cloudy, with a low around 16. Wind chill values as low as -3. Windy, with a west wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Monday
A 40 percent chance of snow before noon. Mostly cloudy, with a high near 24. Wind chill values as low as -3. Windy, with a west northwest wind 20 to 30 mph, with gusts as high as 45 mph.
Monday Night
Partly cloudy, with a low around 12. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday
Partly sunny, with a high near 27.
Tuesday Night
Mostly cloudy, with a low around 23.
Wednesday
Mostly cloudy, with a high near 32.
Wednesday Night
A chance of snow before midnight. Mostly cloudy, with a low around 15.
New Year's Day
Mostly sunny, with a high near 22.
Thursday Night
Mostly clear, with a low around 10.
Friday
Mostly sunny, with a high near 26.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
Partly sunny, with a high near 34.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.63°N 88.1°W
Last Update:
3:31 pm CST Dec 27, 2025
Forecast Valid:
4pm CST Dec 27, 2025-6pm CST Jan 3, 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