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

64°F

18°C

Humidity 56%
Wind Speed NE 16 G 26 mph
Barometer 30.23 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 21 May 2:45 pm CDT
Extended Forecast for

Naperville IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 63. East northeast wind around 15 mph, with gusts as high as 20 mph.

    High: 63 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 51. Northeast wind 10 to 15 mph.

    Low: 51 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 68. East northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 68 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of showers after 10pm. Cloudy, with a low around 52. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before 10am. Mostly cloudy, with a high near 73. North wind around 5 mph, with gusts as high as 10 mph.

    High: 73 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Partly sunny, with a high near 78. Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Memorial Day

    Memorial Day: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 63. East northeast wind around 15 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 51. Northeast wind 10 to 15 mph.
Friday
Mostly cloudy, with a high near 68. East northeast wind around 15 mph, with gusts as high as 25 mph.
Friday Night
A 20 percent chance of showers after 10pm. Cloudy, with a low around 52. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
A 20 percent chance of showers before 10am. Mostly cloudy, with a high near 73. North wind around 5 mph, with gusts as high as 10 mph.
Saturday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 54.
Sunday
A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Partly sunny, with a high near 78. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 55.
Memorial Day
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 61.
Wednesday
A chance of showers. Partly sunny, with a high near 84.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Naperville IL
 41.74°N 88.15°W
Last Update:
2:46 pm CDT May 21, 2026
Forecast Valid:
2pm CDT May 21, 2026-6pm CDT May 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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