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

27°F

-3°C

Humidity 93%
Wind Speed W 5 mph
Barometer 29.94 in
Dewpoint 25°F (-4°C)
Visibility 5.00 mi
Wind Chill21°F (-6°C)
Last update 6 Dec 8:45 am CST
Extended Forecast for

Naperville IL

Winter Weather Advisory December 7, 12:00am until December 7, 09:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Today

    Today: A slight chance of flurries after noon. Mostly cloudy, with a high near 29. West northwest wind around 5 mph becoming calm in the afternoon. Winds could gust as high as 10 mph.

    High: 29 °F

    Slight Chance
    Flurries

  • Tonight

    Tonight: Snow, mainly after midnight. Low around 23. Light east southeast wind becoming east northeast 5 to 10 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 23 °F

    Chance Snow
    then Snow

  • Sunday

    Sunday: A 50 percent chance of snow, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a temperature rising to near 27 by 11am, then falling to around 19 during the remainder of the day. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 27 °F⇓

    Chance Snow
    then Slight
    Chance Snow

  • Sunday Night

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

    Low: 10 °F

    Slight Chance
    Snow Showers

  • Monday

    Monday: Partly sunny, with a high near 22. Light and variable wind becoming south southwest 5 to 10 mph in the morning.

    High: 22 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 37.

    High: 37 °F

    Mostly Cloudy

  • Tuesday Night

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

    Low: 32 °F

    Rain Likely

  • Wednesday

    Wednesday: A chance of rain and snow before noon, then a chance of snow. Mostly cloudy, with a high near 34.

    High: 34 °F

    Chance
    Rain/Snow
    then Chance
    Snow

Detailed Forecast

Today
A slight chance of flurries after noon. Mostly cloudy, with a high near 29. West northwest wind around 5 mph becoming calm in the afternoon. Winds could gust as high as 10 mph.
Tonight
Snow, mainly after midnight. Low around 23. Light east southeast wind becoming east northeast 5 to 10 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Sunday
A 50 percent chance of snow, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a temperature rising to near 27 by 11am, then falling to around 19 during the remainder of the day. North wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 10. North wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Partly sunny, with a high near 22. Light and variable wind becoming south southwest 5 to 10 mph in the morning.
Monday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 11.
Tuesday
Mostly cloudy, with a high near 37.
Tuesday Night
Rain likely. Cloudy, with a low around 32.
Wednesday
A chance of rain and snow before noon, then a chance of snow. Mostly cloudy, with a high near 34.
Wednesday Night
A chance of snow before midnight. Mostly cloudy, with a low around 15.
Thursday
A chance of snow. Mostly cloudy, with a high near 24.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 12.
Friday
Partly sunny, with a high near 19.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Naperville IL
 41.74°N 88.15°W
Last Update:
9:06 am CST Dec 6, 2025
Forecast Valid:
9am CST Dec 6, 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

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation