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

Flash Flooding Continuing Along the Gulf Coast; Dry Thunderstorms in the West

Excessive rainfall continues to produce life-threatening, locally catastrophic flash flooding along the central Gulf Coast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts Oregon, California, and the Great Basin into the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

A Few Clouds

75°F

24°C

Humidity 44%
Wind Speed W 9 G 21 mph
Barometer 29.99 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 19 Jun 1:45 pm CDT
Extended Forecast for

5 Miles SSW Naperville IL

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 75. West wind around 10 mph, with gusts as high as 20 mph.

    High: 75 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. West wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 50%.

    Low: 58 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 77. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58. West northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 72. East southeast wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%.

    High: 72 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 57. Chance of precipitation is 80%.

    Low: 57 °F

    Showers

  • Monday

    Monday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 71.

    High: 71 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

Juneteenth
Mostly sunny, with a high near 75. West wind around 10 mph, with gusts as high as 20 mph.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. West wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 50%.
Saturday
Sunny, with a high near 77. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 58. West northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 72. East southeast wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Sunday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 57. Chance of precipitation is 80%.
Monday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
A chance of showers after 1am. Partly cloudy, with a low around 56.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Mostly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Naperville IL
 41.7°N 88.22°W
Last Update:
1:31 pm CDT Jun 19, 2026
Forecast Valid:
2pm CDT Jun 19, 2026-6pm CDT Jun 25, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation