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 69%
Wind Speed SW 10 mph
Barometer 29.80 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 5 Dec 10:15 pm CST
Extended Forecast for

Romeoville IL

  • Tonight

    Tonight: A 20 percent chance of snow before 3am. Cloudy, with a steady temperature around 27. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 27 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: Mostly cloudy, with a high near 28. West wind 5 to 10 mph becoming light in the afternoon.

    High: 28 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Snow likely, mainly after midnight. Cloudy, with a temperature rising to around 26 by 4am. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 23 °F⇑

    Slight Chance
    Snow then
    Snow Likely

  • Sunday

    Sunday: Snow likely, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 27. North wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 27 °F

    Snow Likely
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow showers. Mostly cloudy, with a low around 12. North wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 12 °F

    Slight Chance
    Snow Showers

  • Monday

    Monday: Partly sunny, with a high near 21.

    High: 21 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy
    then Chance
    Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 36.

    High: 36 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain likely. Cloudy, with a low around 32.

    Low: 32 °F

    Rain Likely

Detailed Forecast

Tonight
A 20 percent chance of snow before 3am. Cloudy, with a steady temperature around 27. Southwest wind around 10 mph, with gusts as high as 20 mph.
Saturday
Mostly cloudy, with a high near 28. West wind 5 to 10 mph becoming light in the afternoon.
Saturday Night
Snow likely, mainly after midnight. Cloudy, with a temperature rising to around 26 by 4am. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Sunday
Snow likely, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 27. North wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Sunday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 12. North wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Partly sunny, with a high near 21.
Monday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 12.
Tuesday
Mostly cloudy, with a high near 36.
Tuesday Night
Rain likely. Cloudy, with a low around 32.
Wednesday
A chance of rain and snow showers before noon, then a chance of snow showers. Cloudy, with a high near 36.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 16.
Thursday
Mostly cloudy, with a high near 26.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 11.
Friday
Partly sunny, with a high near 19.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.63°N 88.1°W
Last Update:
9:31 pm CST Dec 5, 2025
Forecast Valid:
10pm CST Dec 5, 2025-6pm CST Dec 12, 2025
 
Forecast Discussion
 
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Additional Resources

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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