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.

Fair

32°F

0°C

Humidity 80%
Wind Speed N 16 G 24 mph
Barometer 30.08 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 22 Mar 10:15 pm CDT
Extended Forecast for

Downers Grove IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 28. North wind around 15 mph, with gusts as high as 30 mph.

    Low: 28 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 44. North wind around 10 mph, with gusts as high as 20 mph.

    High: 44 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30. East wind around 5 mph becoming south after midnight.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 54. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 54 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40. South wind around 5 mph, with gusts as high as 15 mph.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 61.

    High: 61 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A chance of showers after 1pm. Partly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 28. North wind around 15 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 44. North wind around 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 30. East wind around 5 mph becoming south after midnight.
Tuesday
Partly sunny, with a high near 54. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly cloudy, with a low around 40. South wind around 5 mph, with gusts as high as 15 mph.
Wednesday
Mostly cloudy, with a high near 61.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 49.
Thursday
A chance of showers after 1pm. Partly sunny, with a high near 73.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
Partly sunny, with a high near 42.
Friday Night
Mostly clear, with a low around 28.
Saturday
Sunny, with a high near 51.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Downers Grove IL
 41.78°N 88.03°W
Last Update:
9:51 pm CDT Mar 22, 2026
Forecast Valid:
10pm CDT Mar 22, 2026-6pm CDT Mar 29, 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