Severe Thunderstorms in the Ohio and Tennessee Valleys; Flash Flooding Possible in the Southwest

Scattered damaging winds, isolated severe hail, and a brief tornado or two are possible from the Upper Ohio to Tennessee Valleys during the late afternoon and evening. Across the Southwest, monsoonal moisture will continue to bring heavy rain and a threat for isolated to scattered flash flooding through Saturday. Read More >

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Fair

48°F

9°C

Humidity 94%
Wind Speed NW 3 mph
Barometer 30.21 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 7 Sep 7:45 am CDT
Extended Forecast for

4 Miles S Naperville IL

  • Today

    Today: Sunny, with a high near 69. Northwest wind 5 to 10 mph.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 42. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 74. Light south wind increasing to 5 to 10 mph in the morning.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 49. South southeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 49 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. South wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 69. Northwest wind 5 to 10 mph.
Tonight
Mostly clear, with a low around 42. Northwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 74. Light south wind increasing to 5 to 10 mph in the morning.
Monday Night
Partly cloudy, with a low around 49. South southeast wind around 5 mph, with gusts as high as 10 mph.
Tuesday
Mostly sunny, with a high near 77. South wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly cloudy, with a low around 56.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Naperville IL
 41.7°N 88.16°W
7:56 am CDT Sep 7, 2025
8am CDT Sep 7, 2025-6pm CDT Sep 13, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database