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Hazardous Weather Conditions

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Fair

79°F

26°C

Humidity 89%
Wind Speed S 8 G 14 mph
Barometer 30.04 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 5 Aug 9:55 am CDT
Extended Forecast for

Downers Grove IL

  • This Afternoon

    This Afternoon: A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 81. Southwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.

    High: 81 °F

    Chance
    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 9pm. Cloudy, with a low around 68. West wind around 5 mph becoming east after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 68 °F

    Showers
    Likely

  • Thursday

    Thursday: A 10 percent chance of showers before 7am. Mostly cloudy, with a high near 77. South southeast wind around 5 mph becoming west southwest in the afternoon.

    High: 77 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 65. Southeast wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 83. Calm wind becoming southwest around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 83 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.

    Low: 68 °F

    Mostly Clear
    then Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms. Partly sunny, with a high near 84.

    High: 84 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 81. Southwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms likely, mainly before 9pm. Cloudy, with a low around 68. West wind around 5 mph becoming east after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A 10 percent chance of showers before 7am. Mostly cloudy, with a high near 77. South southeast wind around 5 mph becoming west southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 65. Southeast wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 83. Calm wind becoming southwest around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 84.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 83.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Downers Grove IL
 41.78°N 88.03°W
Last Update:
11:21 am CDT Aug 5, 2026
Forecast Valid:
12pm CDT Aug 5, 2026-6pm CDT Aug 11, 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