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

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Overcast

18°F

-8°C

Humidity 73%
Wind Speed NE 5 mph
Barometer 30.34 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 7 Dec 11:55 pm CST
Extended Forecast for

Romeoville IL

  • Overnight

    Overnight: Isolated snow showers before 1am, then isolated flurries between 1am and 2am. Mostly cloudy, with a low around 13. Northeast wind around 5 mph. Chance of precipitation is 20%.

    Low: 13 °F

    Isolated Snow
    Showers

  • Monday

    Monday: Partly sunny, with a high near 23. East wind around 5 mph becoming south in the afternoon. Winds could gust as high as 10 mph.

    High: 23 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a temperature rising to around 26 by 5am. South wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 17 °F⇑

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 36. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 36 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain likely, possibly mixed with snow, becoming all rain after 9pm. Cloudy, with a low around 34. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 70%.

    Low: 34 °F

    Rain/Snow
    Likely then
    Rain Likely
    and Breezy

  • Wednesday

    Wednesday: A chance of rain and snow before noon, then a slight chance of snow. Mostly cloudy, with a high near 35. Breezy. Chance of precipitation is 30%.

    High: 35 °F

    Chance
    Rain/Snow and
    Breezy then
    Slight Chance
    Snow

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 17.

    Low: 17 °F

    Slight Chance
    Snow

  • Thursday

    Thursday: A chance of snow. Mostly cloudy, with a high near 24.

    High: 24 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 7.

    Low: 7 °F

    Chance Snow

Detailed Forecast

Overnight
Isolated snow showers before 1am, then isolated flurries between 1am and 2am. Mostly cloudy, with a low around 13. Northeast wind around 5 mph. Chance of precipitation is 20%.
Monday
Partly sunny, with a high near 23. East wind around 5 mph becoming south in the afternoon. Winds could gust as high as 10 mph.
Monday Night
Mostly cloudy, with a temperature rising to around 26 by 5am. South wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday
Mostly cloudy, with a high near 36. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Rain likely, possibly mixed with snow, becoming all rain after 9pm. Cloudy, with a low around 34. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 70%.
Wednesday
A chance of rain and snow before noon, then a slight chance of snow. Mostly cloudy, with a high near 35. Breezy. Chance of precipitation is 30%.
Wednesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 17.
Thursday
A chance of snow. Mostly cloudy, with a high near 24.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 7.
Friday
Mostly cloudy, with a high near 16.
Friday Night
Mostly cloudy, with a low around 0.
Saturday
Partly sunny and cold, with a high near 9.
Saturday Night
Mostly cloudy, with a low around -2.
Sunday
Mostly sunny, with a high near 13.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.63°N 88.1°W
Last Update:
10:31 pm CST Dec 7, 2025
Forecast Valid:
12am CST Dec 8, 2025-6pm CST Dec 14, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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