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.

Fog/Mist

39°F

4°C

Humidity 100%
Wind Speed E 7 mph
Barometer 30.01 in
Dewpoint 39°F (4°C)
Visibility 2.00 mi
Wind Chill34°F (1°C)
Last update 27 Dec 7:45 am CST
Extended Forecast for

Romeoville IL

  • Today

    Today: Patchy fog before noon. Otherwise, cloudy, with a high near 44. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 44 °F

    Patchy Fog
    then Cloudy

  • Tonight

    Tonight: Showers likely, mainly after 3am. Patchy fog after midnight. Otherwise, cloudy, with a temperature rising to around 49 by 4am. Southeast wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F⇑

    Slight Chance
    Showers then
    Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 9am. Patchy fog before noon. High near 59. South southeast wind 5 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 59 °F

    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: Rain showers likely before 9pm, then rain and snow showers likely between 9pm and midnight, then a chance of snow showers after midnight. Cloudy, with a low around 18. Wind chill values as low as zero. Windy, with a west wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 18 °F

    Rain/Snow
    Likely and
    Windy

  • Monday

    Monday: A 30 percent chance of snow showers before noon. Mostly cloudy, with a high near 24. Windy, with a west wind 25 to 30 mph, with gusts as high as 45 mph.

    High: 24 °F

    Windy. Chance
    Snow Showers
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 13. Blustery.

    Low: 13 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 32.

    High: 32 °F

    Mostly Cloudy

Detailed Forecast

Today
Patchy fog before noon. Otherwise, cloudy, with a high near 44. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Tonight
Showers likely, mainly after 3am. Patchy fog after midnight. Otherwise, cloudy, with a temperature rising to around 49 by 4am. Southeast wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers, with thunderstorms also possible after 9am. Patchy fog before noon. High near 59. South southeast wind 5 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Sunday Night
Rain showers likely before 9pm, then rain and snow showers likely between 9pm and midnight, then a chance of snow showers after midnight. Cloudy, with a low around 18. Wind chill values as low as zero. Windy, with a west wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday
A 30 percent chance of snow showers before noon. Mostly cloudy, with a high near 24. Windy, with a west wind 25 to 30 mph, with gusts as high as 45 mph.
Monday Night
Partly cloudy, with a low around 13. Blustery.
Tuesday
Mostly sunny, with a high near 28.
Tuesday Night
Mostly cloudy, with a low around 22.
Wednesday
Mostly cloudy, with a high near 32.
Wednesday Night
A chance of snow before midnight. Mostly cloudy, with a low around 12.
New Year's Day
Mostly sunny, with a high near 19.
Thursday Night
Mostly clear, with a low around 6.
Friday
Mostly sunny, with a high near 20.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.66°N 88.1°W
Last Update:
4:51 am CST Dec 27, 2025
Forecast Valid:
7am CST Dec 27, 2025-6pm CST Jan 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation