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

28°F

-2°C

Humidity 74%
Wind Speed SW 14 mph
Barometer 30.40 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 11 Jan 6:45 pm CST
Extended Forecast for

4 Miles SSW Naperville IL

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 28. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 28 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 42. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 42 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Increasing clouds, with a low around 32. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 32 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly after noon. Partly sunny, with a high near 48. West southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 48 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 31. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 31 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain and snow likely, becoming all snow after noon. Mostly cloudy, with a high near 36. Breezy. Chance of precipitation is 70%.

    High: 36 °F

    Breezy.
    Rain/Snow
    Likely then
    Snow Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 15. Blustery.

    Low: 15 °F

    Chance Snow
    and Blustery

  • Thursday

    Thursday: Partly sunny, with a high near 27.

    High: 27 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 22.

    Low: 22 °F

    Chance Snow

Detailed Forecast

Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 28. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 42. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Increasing clouds, with a low around 32. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
A 30 percent chance of rain, mainly after noon. Partly sunny, with a high near 48. West southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday Night
A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 31. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Rain and snow likely, becoming all snow after noon. Mostly cloudy, with a high near 36. Breezy. Chance of precipitation is 70%.
Wednesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 15. Blustery.
Thursday
Partly sunny, with a high near 27.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 22.
Friday
A chance of snow. Mostly cloudy, with a high near 33.
Friday Night
A chance of snow. Mostly cloudy, with a low around 18.
Saturday
A chance of snow. Mostly cloudy, with a high near 24.
Saturday Night
Mostly cloudy, with a low around 10.
Sunday
Partly sunny, with a high near 23.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Naperville IL
 41.7°N 88.19°W
Last Update:
5:41 pm CST Jan 11, 2026
Forecast Valid:
7pm CST Jan 11, 2026-6pm CST Jan 18, 2026
 
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