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.

Fair

81°F

27°C

Humidity 89%
Wind Speed W 7 mph
Barometer 29.95 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 16 Aug 8:10 pm CDT
Extended Forecast for

4 Miles SSW Naperville IL

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 65. North northwest wind 5 to 10 mph.

    Low: 65 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 79. North northwest wind around 5 mph, with gusts as high as 10 mph.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62. North northwest wind around 5 mph becoming calm.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 79. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 79 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. West wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%.

    Low: 64 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 76.

    High: 76 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 65. North northwest wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 79. North northwest wind around 5 mph, with gusts as high as 10 mph.
Monday Night
Partly cloudy, with a low around 62. North northwest wind around 5 mph becoming calm.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 79. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. West wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%.
Wednesday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
Mostly sunny, with a high near 76.
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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:
7:21 pm CDT Aug 16, 2026
Forecast Valid:
8pm CDT Aug 16, 2026-6pm CDT Aug 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation